Dialogue system, vehicle and method for controlling the vehicle

ABSTRACT

A dialogue system, a vehicle and a method for controlling the vehicle is disclosed. The method for controlling the vehicle includes: acquiring an utterance and a speech pattern by recognizing a speech when a speech of a plurality of speakers is input through a speech input device; classifying dialogue contents for each speaker based on the acquired utterance and speech pattern; acquiring a relationship between the speakers based on the acquired utterance; understanding an intention and a context for each speaker based on the acquired relationship between the speakers and the acquired dialogue content for each speaker determining an action corresponding to the acquired relationship and the acquired intention and context for each speaker, and outputting an utterance corresponding to the determined action; generating a control command corresponding to the determined action; and controlling a load based on the generated control command.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to and the benefit of Korean Patent Application No. 10-2018-0067127, filed on Jun. 12, 2018, the entire contents of which are incorporated herein by reference.

FIELD

The present disclosure relate to a dialogue system to provide information or service needed for a user, a vehicle having the same and a method for controlling the vehicle.

BACKGROUND

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

As for an audio-video-navigation (AVN) device of a vehicle or most mobile devices, when providing visual information to a user or receiving a user's input, a small screen and a small button provided therein may cause the user inconvenience.

Particularly, during the driving, when a user takes off his or her hand from a steering wheel or when a user looks up at another place for checking the visual information and operating devices, it may be a serious danger to the safe driving.

Therefore, when applying a dialogue system to a vehicle, it may be possible to provide services in more convenient and safer manner, wherein the dialogue system is capable of recognizing a user's intention through dialogue with the user and providing information or service desired for the user.

SUMMARY

The present disclosure provides a dialogue system capable of generating a relationship between speakers of a plurality of speakers by acquiring a speech pattern for each speaker of a plurality of speakers, capable of recognizing a speaker performing an utterance based on the recognized speech and the acquired speech pattern when a speech is recognized, capable of selecting a leader of dialogue based on the recognized speaker and the generated relationship, performing a dialogue with the selected leader of dialogue and controlling at least one function, a vehicle having the same and a method for controlling the vehicle.

It is another aspect of the present disclosure to provide a dialogue system capable of providing a service in accordance with a user's real intention or the most desired service for a user by precisely recognizing a user's intention based on a variety of information such as dialogue with the user and vehicle state information, driving environment information, and user information during the vehicle drives, a vehicle having the same and a method for controlling the vehicle.

Additional aspects of the present disclosure will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present disclosure.

In accordance with an aspect of the disclosure, a dialogue system includes a speech input processor configured to: when a speech of a plurality of speakers is input, acquire an utterance and a speech pattern by recognizing the input speech, and configured to classify dialogue contents for each speaker of the plurality of speakers based on the acquired utterance and speech pattern; a context information processor configured to: acquire a relationship between speakers of the plurality of speakers based on the acquired utterance, and determine an intention and a context for each speaker based on the acquired relationship between the speakers of the plurality of speakers and the classified dialogue contents for each speaker; a storage configured to store the relationship between the speakers and the speech pattern for each speaker; a dialogue manager configured to determine an action corresponding to the acquired relationship, and the intention and context for each speaker; and a result processor configured to output an utterance corresponding to the determined action.

When receiving contact information from a mobile device, the context information processor may acquire at least one of a name, a title, or a phone number of a speaker who has a dialogue with a user, based on the received contact information, and acquires the relationship between speakers based on the acquired at least of the name, the title, or the phone number of the speaker having the dialogue with the user.

The context information processor may determine a priority between the speakers of the plurality of speakers based on the acquired relationship of the speakers, the storage further may store function control information for each speaker, the dialogue manager may determine an action corresponding to the determined priority and the stored function control information, and the result processor may generate a control command controlling at least one function based on the determined priority and the stored function control information for each speaker, and may output the generated control command to at least one device.

The dialogue system may further include a pre-utterance determiner configured to determine whether it is a pre-utterance context, wherein the context information processor may determine a priority between the speakers based on the acquired relationship priority between the speakers and recognize a speaker having the highest priority based on the determined priority; and the dialogue manager may determine an action corresponding to the speaker having the highest priority and the pre-utterance context.

In accordance with another aspect of the disclosure, a vehicle includes a plurality of loads; a speech input device configured to receive a speech; a dialogue system configured to: acquire an utterance and a speech pattern by recognizing a speech input through the speech input device, classify dialogue contents for each speaker of the plurality of speakers based on the acquired utterance and the speech pattern, acquire a relationship between speakers of the plurality of speakers based on the acquired utterance, determine an intention and a context for each speaker of the plurality of speakers based on the acquired relationship between the speakers and the classified dialogue contents for each speaker, determine an action corresponding to the acquired relationship between the speakers, and the acquired intention and the context for each speaker of the plurality speakers, output an utterance corresponding to the determined action, and generate a control command corresponding to the determined action; and a vehicle controller configured to control at least one load among the plurality of loads, based on the received control command, when the control command is received.

The vehicle may further include a communication device configured to communicate with a mobile device, wherein the dialogue system may acquire at least one of a name, a title, or a phone number of a speaker who can have a dialogue with a user, based on the received contact information when receiving contact information from the mobile device, acquire a relationship between speakers of the plurality of speakers based on the acquired at least one of the name, the title, or the phone number of the speaker having the dialogue with the user, and store at least one information of the name, the title, or the phone number for each speaker, a relationship between speakers of the plurality of speakers, and the speech pattern for each speaker of the plurality of speakers.

The dialogue system may receive function control information for controlling functions of the vehicle, from a mobile device of the plurality of speakers, store the received function control information for each speaker in the storage, determine a priority between speakers of the plurality of speakers based on the relationship between the speakers of the plurality of speakers, determines an action corresponding to the determined priority and the stored function control information, generate a control command controlling at least one function based on the determined priority and the stored function control information, and output the generated control command to at least one load among the plurality of loads.

When the speech is input through the speech input device, the dialogue system may recognize a speech, and recognize a speaker by comparing the recognized speech pattern of the speech with a speech pattern stored in the storage.

The function control information may include seat angle information for each seat of a plurality of seats, information on a horizontal position of each seat in front side and a rear side, a wind volume and a wind direction of air conditioner information, seat heating wire on/off information, seat heating wire temperature information, seat ventilation on/off information, and lumber support information.

The vehicle may further include an information except for speech input device, wherein the dialogue system may store a seat location for each speaker input through the information except for the speech input device.

The dialogue system may recognize an utterance position based on a time at which a signal of a speech reaches the speech input device, identify a seat location corresponding to the recognized utterance position, recognize a speech pattern of a speech reaching the speech input device, match the recognized speech pattern of speech with the identified seat location, and store information of the matching the recognized speech pattern of the speech with the identified seat location.

The vehicle may further include a detector provided in the plurality of seats and configured to detect the seat angle information of the plurality of seats and the horizontal position of each seat in the front and rear sides, wherein the dialogue system may match the seat angle information and the horizontal position with the identified seat location, and store information of the matching the seat angle information and the horizontal position with the identified seat location.

The dialogue system may determine whether it is a pre-utterance context and when it is determined that it is a pre-utterance context, the dialogue system may output an utterance corresponding to the pre-utterance context based on the relationship between the speakers of the plurality of speakers.

The dialogue system may determine a priority between speakers of the plurality of speakers based on the relationship between the speakers of the plurality of speakers, recognize a speaker having the highest priority based on the determined priority, and determine an action corresponding to the speaker having the highest priority and the pre-utterance context.

When an intention of a currently input utterance is determined as a response to a previously input speech, the dialogue system may acquire a relationship with the speaker of the currently input utterance based on the utterance corresponding to the previously input speech.

The dialogue system may match the acquired relationship of the speaker of the currently input speech, with a speech pattern of the currently input speech, and store the matched information thereof.

In accordance with another aspect of the disclosure, a method for controlling a vehicle includes: acquiring an utterance and a speech pattern by recognizing the speech when a speech of a plurality of speakers is input through a speech input device; classifying dialogue contents for each speaker of the plurality of speakers based on the acquired utterance and the speech pattern; acquiring a relationship between speakers of the plurality of speakers based on the acquired utterance; determining an intention and a context for each speaker of the plurality of speakers based on the acquired relationship; determining an action corresponding to the acquired relationship and the acquired intention and context for each speaker of the plurality of speakers, and outputting an utterance corresponding to the determined action; generating a control command corresponding to the determined action; and controlling at least one load among a plurality of loads based on the generated control command.

The control method may further include: acquiring at least one of a name, a title, or a phone number of a speaker of the plurality of speakers based on contact information received from a mobile device; acquiring the relationship between the speakers of the plurality of speakers based on the at least one of the name, the title, or the phone number of the speaker of the plurality of speakers; and storing the at least one of the name, the title, and the phone number for each speaker, and the relationship between the speakers of the plurality of speakers in a storage.

The control method may further include receiving function control information for controlling functions of the vehicle, from mobile devices of the plurality of speakers; determining a priority between the speakers of the plurality of speakers based on the relationship between the speakers of the plurality of speakers; determining an action corresponding to the determined priority and the received function control information for each speaker; generating a control command controlling at least one function based on the determined priority and the received function control information for each speaker, and outputting the generated control command to at least one load among the plurality of loads.

The control method may further include receiving a seat location for a speaker; and storing the seat location for the speaker.

The control method may further include recognizing an utterance position based on a time at which a signal of a speech reaches at the speech input device; identifying a seat location corresponding to the recognized utterance position; recognizing a speech pattern of a speech reaching at the speech input device; and matching the recognized speech pattern of the speech with the identified seat location, and storing matched information thereof.

The control method may further include: determining a priority between the speakers of the plurality of speakers based on the relationship between the speakers of the plurality of speakers; recognizing a speaker having the highest priority based on the determined priority and determining whether it is a pre-utterance context; and outputting an utterance corresponding to the speaker having the highest priority and the pre-utterance context when it is determined that it is a pre-utterance context.

The acquiring the relationship between the speakers of the plurality of speakers based on the acquired utterance may include: when it is determined that an intention of a currently input utterance a response to a previously input speech, acquiring a relationship with a speaker of the currently input utterance based on an utterance corresponding to the previously input speech; and matching the acquired relationship of the speaker of the currently input utterance, with a speech pattern of the currently input speech, and storing matched information thereof.

Further areas of applicability will become apparent from the description provided herein. It should be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.

DRAWINGS

In order that the disclosure may be well understood, there will now be described various forms thereof, given by way of example, reference being made to the accompanying drawings, in which:

FIG. 1 is a control block diagram illustrating a dialogue system;

FIG. 2 is a view illustrating an interior of a vehicle;

FIGS. 3 to 5 are views illustrating an example of dialogue that generates between a dialogue system and a driver;

FIGS. 6 and 7 are control block diagrams schematically illustrating a connection between the dialogue system and components of the vehicle;

FIGS. 8 and 9 are control block diagrams schematically illustrating a connection between components of the dialogue system and the components of the vehicle;

FIG. 10 is a control block diagram illustrating a vehicle independent method in which a dialogue system is provided in a vehicle;

FIGS. 11 and 12 are control block diagrams illustrating a vehicle gateway method in which a dialogue system is provided in a remote server and a vehicle acts as a gateway connecting a user to the dialogue system;

FIG. 13 is a control block diagram illustrating a case in which the vehicle can perform some input processing and output processing in the vehicle gateway method;

FIG. 14 is a control block diagram illustrating a hybrid method in which both of a remote dialogue system server and a vehicle perform a dialogue processing;

FIGS. 15 and 16 are control block diagrams illustrating a mobile gateway method in which a mobile device connected to a vehicle connects a user to a remote dialogue system server;

FIG. 17 is a control block diagram illustrating a mobile independent method in which a dialogue system is provided in a mobile device;

FIGS. 18, 19A and 19B are control block diagrams illustrating a configuration of an input processor in the configuration of the dialogue system in detail;

FIGS. 20A and 20B are views illustrating an example of information stored in a context understanding table;

FIG. 21 is a control block diagram illustrating a dialogue system applicable to a case in which the dialogue system first outputs an utterance before receiving a user's input;

FIGS. 22A, 22B and 22C are views illustrating an example of information stored in a pre-utterance condition table;

FIG. 23 is a control block diagram illustrating a configuration of a dialogue manager in detail;

FIG. 24 is a view illustrating an example of information stored in a relational action DB;

FIG. 25 is a view illustrating an example of information stored in an action execution condition DB;

FIG. 26 is a view illustrating an example of information stored in an action parameter DB;

FIG. 27 is a table illustrating an example of information stored in the ambiguity resolution information DB;

FIGS. 28A and 28B are tables illustrating a variety of examples in which the vehicle control is performed since the ambiguity solver resolves the ambiguity by referring to the ambiguity resolution information DB and extracting an action;

FIG. 29 is a control block diagram illustrating a configuration of the result processor in details;

FIGS. 30 to 42 are views illustrating a particular example in which the dialogue system processes an input, manages a dialogue, and outputs a result when a user inputs an utterance related to a route guidance;

FIG. 43 is a flowchart illustrating a method of processing a user's input in a dialogue processing method;

FIG. 44 is a flowchart illustrating a method of managing the dialogue using the output of the input processor in the dialogue processing method;

FIG. 45 is a flowchart illustrating a result processing method for generating a response corresponding to a result of the dialogue management in the dialogue processing method in accordance with an form;

FIGS. 46 to 48 is a flowchart illustrating a case in which the dialogue system outputs a pre-utterance before a user inputs an utterance in the dialogue processing method;

FIG. 49 is a flowchart illustrating of processing a duplicate task when the dialogue system outputs a pre-utterance before a user inputs an utterance in the dialogue processing method;

FIG. 50 is a control block diagram illustrating a vehicle in which a dialogue system is provided;

FIG. 51 is a detailed control block diagram illustrating the dialogue system;

FIG. 52 is a control block diagram illustrating an input processor of the dialogue system;

FIG. 53 is a detailed control block diagram illustrating the input processor of the dialogue system;

FIG. 54 is a control block diagram illustrating a result processor of the dialogue system;

FIG. 55 is a control block diagram illustrating the vehicle having the dialogue system;

FIGS. 56A-56D are examples illustrating contact information stored in a mobile device communicating with the dialogue system;

FIG. 57 is an example illustrating contact information stored in the dialogue system;

FIG. 58 is an example illustrating dialogues among speakers in the vehicle having the dialogue system;

FIGS. 59A and 59B are examples illustrating speakers in the vehicle having the dialogue system;

FIG. 60 is an example illustrating function control information stored in a mobile device communicating with the dialogue system; and

FIG. 61 is an example illustrating dialogue between a user and the dialogue system.

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way.

DETAILED DESCRIPTION

The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

Well-known functions or constructions are not described in detail since they would obscure the one or more exemplar forms with unnecessary detail. Terms such as “unit”, “module”, “member”, and “block” may be embodied as hardware or software. According to forms, a plurality of “unit”, “module”, “member”, and “block” may be implemented as a single component or a single “unit”, “module”, “member”, and “block” may include a plurality of components.

It will be understood that when an element is referred to as being “connected” another element, it can be directly or indirectly connected to the other element, wherein the indirect connection includes “connection via a wireless communication network”.

Also, when a part “includes” or “comprises” an element, unless there is a particular description contrary thereto, the part may further include other elements, not excluding the other elements.

As used herein, the singular forms “a,” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise.

An identification code is used for the convenience of the description but is not intended to illustrate the order of each step. The each step may be implemented in the order different from the illustrated order unless the context clearly indicates otherwise.

Reference will now be made in detail to forms of the present disclosure, examples of which are illustrated in the accompanying drawings.

In one form, a dialogue system may be configured to recognize a user's intention by using the user's speech and another input except for the speech, and configured to provide a service which is appropriate or need for the user intention. The dialogue system may perform dialogue with a user by outputting a system utterance that is one of tools configured to provide the service or to recognize the user's intention, clearly.

In exemplary forms, the service provided to a user may include all kinds of operations in accordance with a user's need or a user's intention, wherein the all kinds of operations may include providing information, controlling a vehicle, performing audio/video/navigation functions, and providing content from an external server.

In another form, the dialogue system provides a dialogue processing technology specialized for the vehicle environment so as to recognize the user's intention precisely in a special environment, i.e. a vehicle.

A gateway connecting the dialogue system to a user may be a vehicle or a mobile device connected to the vehicle. As mentioned below, the dialogue system may be provided in a vehicle or a remote server outside of the vehicle so as to send or receive data through the communication with the vehicle or the mobile device connected to the vehicle.

Some of components in the dialogue system may be provided in the vehicle and some thereof may be provided in the remote server. Therefore, the vehicle and the remote server may perform a part of the operation of the dialogue system.

FIG. 1 is a control block diagram illustrating a dialogue system in in one form of the present disclosure.

Referring to FIG. 1, a dialogue system 100 may include an input processor 110 processing a user input including a user's speech and an input except for the user speech, or an input including information related to a vehicle or information related to a user; a dialogue manager 120 recognizing a user's intention and a vehicle state using a result of the process of the input processor 110 and determining an action corresponding to the user's intention or the vehicle state; a result processor 130 providing a certain service according to an output result of the dialogue manager 120 or outputting a system utterance for continuing the dialogue; and a storage 140 storing a variety of information for the operation described later.

The input processor 110 may receive two kinds of input such as a user speech and an input except for the speech. The input except for the speech may include recognizing user's gesture, an input except for the user's speech input by an operation of an input device, vehicle state information indicating a vehicle state, driving environment information related to driving information of the vehicle and user information indicating user's state. In addition, other than the above mentioned information, information related to the user and the vehicle may be input to the input processor 110, as long as information is used for recognizing a user's intention or providing a service to a user or a vehicle. A user may include a driver and a passenger.

The input processor 110 converts a user's speech into an utterance in the text type by recognizing the user's speech and recognizes a user's intention by applying natural language understanding algorithm to the user utterance.

The input processor 110 collects information related to the vehicle state or the driving environment of the vehicle other than the user speech, and then understands the context using the collected information.

The input processor 110 transmits the user's intention, which is obtained by the natural language understanding technology, and the information related to the context to the dialogue manager 120.

The dialogue manager 120 determines an action corresponding to the user's intention or the current context based on the user's intention and the information related to the context transmitted from the input processor 110, and manages parameters that are needed to perform the corresponding action.

In exemplary forms, the action may represent all kinds of actions for providing a certain service, and the kinds of the action may be determined in advance. As needed, providing a service may correspond to performing an action.

For example, actions such as a route guidance, a vehicle state check, and gasoline station recommendation may be pre-defined in a domain/action inference rule DB 141 (refer to FIG. 19A), and it may be possible to extract an action corresponding to a user's utterance, i.e., an action intended by a user, according to the stored inference rule. An action related to an event occurred in the vehicle may be pre-defined and then stored in a relational action DB 146 b (refer to FIG. 21).

There is no limitation in the kinds of the action. If an action is allowed to be performed by the dialogue system 100 via the vehicle 200 or the mobile device 400, and is pre-defined while the inference rule thereof or a relation with other action/l event is stored, the action may become the above mentioned action.

The dialogue manager 120 transmits information related to the determined action to the result processor 130.

The result processor 130 generates and outputs a dialogue response and a command that is needed to perform the transmitted action. The dialogue response may be output in text, image or audio type. When the command is output, a service such as vehicle control and external content provision, corresponding to the output command, may be performed.

The storage 140 stores a variety of information for the dialogue processing and the service provision. For example, the storage 140 may pre-store information related to domains, actions, speech acts and entity names used for the natural language understanding and a context understanding table used for understanding the context from the input information. In addition, the storage 140 may pre-store data detected by a sensor provided in the vehicle, information related to a user, and information needed for the action. A description of information stored in the storage 140 will be described later.

As mentioned above, the dialogue system 100 provides a dialogue processing technology that is specified for the vehicle environment. All or some of components of the dialogue system 100 may be contained in the vehicle. The dialogue system 100 may be provided in the remote server and the vehicle may act as a gateway between the dialogue system 100 and a user. In either case, the dialogue system 100 may be connected to the user via the vehicle or the mobile device connected to the vehicle.

FIG. 2 is a view illustrating an interior of a vehicle.

Referring to FIG. 2, a display 231 configured to display a screen required for the control of the vehicle including an audio function, a video function, a navigation function, and a calling function, and an input button 221 configured to receive a user's control command may be provided in a center fascia 203 corresponding to the center portion of a dashboard inside of the vehicle 200.

For the user's operation convenience, an input button may be provided in a steering wheel 207 and a jog shuttle 225 acting as an input button may be provided in a center console region 202 provided between a driver seat 254 a and a passenger seat 254 b.

A module including the display 231, the input button 221 and a processor controlling a variety of functions may correspond to an audio video navigation (AVN) terminal or a head unit.

The display 231 may be implemented by any one of various display devices, e.g., Liquid Crystal Display (LCD), Light Emitting Diode (LED), Plasma Display Panel (PDP), Organic Light Emitting Diode (OLED), and Cathode Ray Tube (CRT).

The input button 221 may be provided in a hard key type on an area adjacent to the display 231, as illustrated in FIG. 2. Alternatively, when the display 231 is implemented by a touch screen, the display 231 may perform a function of the input button 221.

The vehicle 200 may receive a user control command as a speech via a speech input device 210. The speech input device 210 may include a microphone configured to receive the sound and then covert the sound into an electrical signal.

For the effective speech input, the speech input device 210 may be mounted to a head lining 205, as illustrated in FIG. 2, but an exemplary form of the vehicle 200 is not limited thereto. Therefore, the speech input device 210 may be mounted to the dashboard 201 or the steering wheel 207. In addition, the speech input device 210 may be mounted to any position as long as a position is appropriate for receiving the user's speech.

In the inside of the vehicle 200, a speaker 232 configured to perform dialogue with a user or configured to output a sound required to provide the service desired by the user may be provided. For example, the speaker 232 may be provided inside of the driver's seat door 253 a and the passenger-seat door 253 b.

The speaker 232 may output a speech for navigation route guidance, a sound or a speech contained in the audio and video contents, a speech for providing information or service desired by the user, and a system utterance generated as a response to the user's utterance.

In one form, the dialogue system 100 provides a service that is appropriate for the user's lifestyle by using the dialogue processing technologies appropriate for the vehicle environments, and the dialogue system 100 may implement a new service using technologies such as connected car, Internet of Things (IoT), and artificial intelligence (AI).

When applying the dialogue processing technologies appropriate for the vehicle environments, such as the dialogue system 100, it may be easily recognize and respond to a key context during a driver directly drives the vehicle. It may be possible to provide a service by applying a weight to a parameter affecting the driving, such as gasoline shortages and drowsy driving, or it may be possible to easily obtain information, e.g., a driving time and destination information, which is needed for the service, based on a condition in which the vehicle moves to the destination in most cases.

In addition, it may be possible to easily implement intelligent services configured to provide a function by recognizing a driver's intention. This is because priority is given to real-time information and action in the driver's direct driving situation. For example, when the driver searches for a gasoline station while driving, it may be interpreted as an intention that the driver will go to the gasoline station. However, when the driver searches for a gasoline station in the place not the vehicle, it may be interpreted as another intention, such as searching for location information inquiry, phone number inquiry and price inquiry other than the intention that the driver will go to the gasoline station.

Further, although the vehicle is a limited space, various situations may occur therein. For example, the drive may utilize the dialogue system 100 in a variety of situations, e.g., driving a vehicle having an unfamiliar interface, such as a rent car, using chauffeur service, a vehicle management situation such as washing vehicle, a situation in which a baby is on board, and a situation of visiting a certain destination.

In addition, a variety of services and dialogue situations may occur in each stages forming the vehicle driving and the pre and post stage of the driving, e.g., a vehicle check stage, a start preparing stage, a driving stage, and a parking stage. Particularly, the driver may utilize the dialogue system 100 in a variety of situations, e.g., a situation in which a driver does not know how to deal with problems, a situation in which the vehicle is associated with a variety of external devices, a situation of checking a driving habit, e.g., gasoline mileage, and a situation of using safety support function, e.g., a smart cruise control, a navigation operation situation, a drowsy driving situation, a situation of driving along the same route every day, and a situation of checking whether the place is available for parking.

FIGS. 3 to 5 are views illustrating an example of dialogue that generates between a dialogue system and a driver.

Referring to FIG. 3, although the driver does not input an utterance for asking the current remaining amount of gasoline or for requesting a gasoline station guidance, the dialogue system 100 may identify the current remaining gasoline by itself and when the identified remaining gasoline is less than a predetermined value, the dialogue system 100 may first output an utterance providing information related to the current remaining gasoline (S1: it is possible to drive 43 km with the remaining gasoline).

In response to the utterance, the driver may input an utterance asking a near gasoline station to receive a route guidance (U1: let me know a near gasoline station), and the dialogue system 100 may output an utterance providing information related to the nearest gasoline station from the current position (S2: the nearest gasoline stations are A-oil Seong-rim gasoline station, B-oil Jang-dae gasoline station, andC-oil Pacific gasoline station.

The driver may additionally input an utterance asking the gasoline price (U2: where is the cheapest?), and the dialogue system 100 may output an utterance providing information related to the price by the fuel type (the lowest price for gasoline is the B oil Jang-dae gasoline station, which costs 1294 won per liter, while the lowest price for diesel is the A oil Seong-rim gasoline station, which costs 985 won per liter).

The driver may input an utterance asking a guidance to the B oil Jang-dae gasoline station (U3), and the dialogue system 100 may output an utterance indicating that the guidance starts to the gasoline station selected by the driver (S4: a route to the B oil Jang-dae gasoline station starts).

That is, the dialogue system 100 may determine that the current needed service is the gasoline guidance service, based on the state information of the vehicle received via the input processor 110, and output a pre-utterance to provide the need service. In addition, the driver may be guided to the near gasoline station selling the fuel type of the current vehicle at the lowest price, through a dialogue with the dialogue system 100. It is assumed that “pre-utterance” represents an utterance that is firstly output from the dialogue system 100 before a user utters.

Meanwhile, when selecting the gasoline station in the example as illustrated in FIG. 3, the dialogue system 100 may omit some questions and directly provide information and thus it may be possible to reduce the steps and time of the dialogue.

For example, the dialogue system 100 may pre-recognize that the fuel type of the current vehicle is gasoline and criteria of the driver for selecting a gasoline station is price. Information related to the fuel type of the vehicle may be acquired from the vehicle and the criteria of the driver for selecting a gasoline station may be pre-input from a driver or acquired by learning the driver dialogue history or the gasoline station selection history. The information may be pre-stored in the storage 140.

In this case, the dialogue system 100 may proactively output an utterance (S2+S3=S3′) providing information related to the fuel price, particularly the gasoline price which is the fuel type of the current vehicle without inputting the utterance (U2) for requesting information about the fuel price by the driver, i.e., U2 is omitted, as illustrated in FIG. 4.

The driver may omit the utterance (U2) for requesting information about the fuel price and the response of the dialogue system 100 may be formed such that the utterance (S2) guiding the near gasoline station and the utterance (S3) guiding the fuel price are integrated as a single response, so as to reduce the steps and time of the dialogue.

In addition, the dialogue system 100 may recognize that the driver's intention is searching for the gasoline station, by itself, based on the fact that the driver asks the current remaining amount of gasoline.

In this case, as illustrated in FIG. 5, although the driver does not input the utterance (U1) asking the near gasoline station, i.e., U1 is omitted, the dialogue system 100 may proactively output an utterance (S2+S3=S3″) providing information related to the fuel price.

In a state in which the nearest gasoline station from the current position and the gasoline station providing the lowest fuel price is the same gasoline station, an utterance (S3″) providing information related to the fuel price may include a question for asking whether to guide to the corresponding gasoline station. Therefore, the user may request the route guidance to the corresponding gasoline station by simply inputting an utterance agreeing with the question of the dialogue system 100 (U3′: yes), without inputting a particular utterance for asking a guidance to a certain gasoline station.

As mentioned above, the dialogue system 100 may recognize the user's real intention and proactively provide information corresponding to the intention by considering a content, which is not uttered by the user, based on pre-obtained information. Therefore, it may be possible to reduce the dialogue steps and time for providing the service desired by the user.

FIGS. 6 and 7 are control block diagrams schematically illustrating a connection between the dialogue system and the components of the vehicle.

Referring to FIG. 6, a user's speech input to the dialogue system 100 may input via the speech input device 210 provided in the vehicle 200. As illustrated in FIG. 2, the speech input device 210 may include a microphone provided inside of the vehicle 200.

The input except for the speech in the user input may be input through an information except for speech input device 220. The information except for speech input device 220 may include an input button 221 and 223 and the jog shuttle 225 for receiving a command through the operation of the user.

The information except for speech input device 220 may include a camera imaging a user. Through an image imaged by the camera, it is possible to recognize a user's gesture, expression or sight direction which is used as a tool of command input. Alternatively, it is possible to recognize the user's state (drowsy state, etc.) through the image imaged by the camera.

Information related to the vehicle may be input into the dialogue system 100 via a vehicle controller 240. Information related to the vehicle may include vehicle state information or surroundings environment information acquired by a variety of sensors provided in the vehicle 200, and information which is initially stored in the vehicle 200, e.g. the fuel type of the vehicle.

The dialogue system 100 may recognize the user's intention and context using the user's speech input via the speech input device 210, the input except for the user's speech, input via the information except for speech input device 220, and a variety of information input via the vehicle controller 240. The dialogue system 100 outputs a response to perform an action corresponding to the user's intention.

A dialogue output device 230 is a device configured to provide an output in a visual, auditory or tactile manner, to a talker. The dialogue output device 230 may include the display 231 and the speaker 232 provided in the vehicle 200. The display 231 and the speaker 232 may output a response to a user's utterance, a question about a user, or information requested by a user, in the visual or auditory manner. In addition, it may be possible to output a vibration by installing a vibrator in the steering wheel 207.

Further, according to the response output from the dialogue system 100, the vehicle controller 240 may control the vehicle 200 to perform an action corresponding to the user's intention or the current situation.

Meanwhile, as well as the information acquired by the sensor provided in the vehicle 200, the vehicle 200 may collect information acquired from an external content server 300 or an external device via the communication device 280, e.g., driving environment information and user information such as traffic conditions, weather, temperature, passenger information and driver personal information, and then the vehicle 200 may transmit the information to the dialogue system 100.

As illustrated in FIG. 7, information acquired by the sensor provided in the vehicle 200, e.g., a remaining amount of fuel, an amount of rain, a rain speed, surrounding obstacle information, a speed, an engine temperature, a tire pressure, current position, may be input to the dialogue system 100 via an internal signal controller 241.

The driving environment information acquired from the outside via Vehicle to Everything (V2X) communication may be input to the dialogue system 100 via an external signal controller 242. The V2X may represent that a vehicle exchanges and shares a variety of useful information, e.g. traffic condition, by communicating with a road infrastructure and other vehicle during driving.

The V2X communication may include Vehicle-to Infrastructure (V21) communication, Vehicle-to-Vehicle (V2V) communication, and Vehicle-to-Nomadic devices (V2N) communication. Therefore, by using the V2X communication, it may be possible to send and receive information such as traffic information about the front side or an access of another vehicle or risk of collision with another vehicle through the communication directly performed between vehicles or the communication with the infrastructure installed in the road and thus it may be possible to inform a driver of the information.

Therefore, the driving environment information input to the dialogue system 100 via the external signal controller 242 may include traffic information about the front side, access information of adjacent vehicle, collision warning with another vehicle, real time traffic conditions, unexpected conditions, and a traffic flow control state.

Although not shown in the drawings, signals obtained via V2X may also be input to the vehicle 200 via the communication device 280.

The vehicle controller 240 may include a memory in which a program for performing the above-described operation and the operation described later is stored, and a processor for executing the stored program. At least one memory and one processor may be provided, and when a plurality of memory and processors are provided, they may be integrated on one chip or physically separated.

In addition, the internal signal controller 241 and the external signal controller 242 may be implemented by the same processor and memory or by a separate processor and memory.

FIGS. 8 and 9 are control block diagrams schematically illustrating a connection between the dialogue system and the components of the vehicle.

Referring to FIG. 8, the user's speech transmitted from the speech input device 210 may be input to a speech input processor 111 provided in the input processor 110, the input except for the user's speech transmitted from the information except for speech input device 220 may be input to a context information processor 112 provided in the input processor 110.

In addition, information that is input via the internal signal controller 241 or the external signal controller 242 is input to the context information processor 112 provided in the input processor 110.

The context information input to the context information processor 112 may include the vehicle state information, the driving environment information and the user information, which is input from the information except for speech input device 220 and the vehicle controller 240. The context information processor 112 may identify the context based on the input context information. The dialogue system 100 may precisely recognize the user's intention or efficiently find out a service needed for the user, by identifying the context.

A response output from the result processor 130 may input to the dialogue output device 230 or the vehicle controller 240 to allow the vehicle 200 to provide the service needed for the user. In addition, the response may be transmitted to the external content server 300 to request the needed service.

The vehicle state information, the driving environment information and the user information transmitted from the vehicle controller 240 may be stored in the storage 140.

Referring to FIG. 9, the storage 140 may include a long-term memory 143 and a short-term memory 144. Data stored in the storage 140 may be classified into the short term memory and the long term memory according to the importance and the persistence of the data, and the designer's intention.

The short-term memory 144 may store the dialogue that is previously performed. The previous dialogue may be a dialogue performed within a reference time from the current. Alternatively, the dialogue may be continuously stored until the capacity of the utterance content between the user and the dialogue system 100 becomes a reference value.

For example, when it is time for meal, the vehicle 200 may output an utterance asking whether to guide a restaurant, via the speaker 232. Whether it is time for meal may be identified based on whether a current time is within a predetermined meal time range. When the user utters a content “let me know a restaurant near Gangnam Station” or a content “let me know a restaurant” and when the current position of the vehicle 200 is around Gangnam Station, the dialogue system 100 may search for restaurants near Gangnam Station through the external content server 300 and then provide information related to the searched restaurant near Gangnam Station, to the user. An example of providing information, the dialogue system 100 may display a list of the restaurant on the display 231 and when the user utters “first”, the dialogue content related to the request of the restaurant to the selection of the restaurant may be stored in the short-term memory 144.

Alternatively, not only the entire dialogue contents are stored, but also specific information contained in the dialogue contents may be stored. For example, it is possible to store the first restaurant of the restaurant list in the short-term memory 144 or the long-term memory 143 as a restaurant selected by the user.

When the user asks “How is the weather?” to the dialogue system 100 after the dialogue about the restaurant near Gangnam Station, the dialogue system 100 may assume that a user's interest location is Gangnam Station, from the dialogue stored in the short-term memory 144 and then output a response “it is raining in Gangnam Station”

Next, when the user utters “recommend a menu of the restaurant”, the dialogue system 100 may assume that “the restaurant” represents a restaurant near Gangnam Station, from the dialogue stored in the short term memory, and acquire information related to a recommend menu of the corresponding restaurant through the service provided from the external content server 300. Accordingly, the dialogue system 100 may output the response “noodle is the best menu in the restaurant.”

The long-term memory 143 may store data according to the presence of the persistence of the data. For example, the long-term memory 143 may determine that the persistence of the data such as position of interest (POI) information, e.g., family and friend telephone numbers and home or company, and user preferences for certain parameters is secured and then store the data therein. In contrast, when it is determined that the persistence of the data is not secured, the data may be stored in the short-term memory 144.

For example, the current location of the user may be a temporary data and thus stored in the short-term memory 144 and the user's preference for the restaurant may be a persistent data which is available later and thus stored in the long-term memory 143.

When the user utters “is there any restaurant around here?”, the dialogue system 100 may recognize the current location of the user and figure out that the user prefers the Chinese restaurant, from the long-term memory 143. Therefore, the dialogue system 100 may recommend the list of user's favorite Chinese restaurant around the current location, by using the external content.

In addition, the dialogue system 100 may proactively provide service and information to the user using the data stored in the long-term memory 143 and the short-term memory 144.

For example, information related to the user's house may be stored in the long-term memory 143. The dialogue system 100 may acquire the information related to the user's house, from the external content server 300, and then provide information indicating “a water outage is expected this Friday due to the cleaning of Apartment”

Information related to a vehicle battery state may be stored in the short-term memory 144. The dialogue system 100 may analyze the vehicle battery state stored in the short-term memory 144 and then provide information indicating “the battery is in the bad condition. Have it repaired before winter.”

FIG. 10 is a control block diagram illustrating a vehicle independent method in which a dialogue system is provided in a vehicle.

According to the vehicle independent method, the dialogue system 100 having the input processor 110, the dialogue manager 120, the result processor 130 and the storage 140 may be contained in the vehicle 200, as illustrated in FIG. 10.

When the dialogue system 100 is contained in the vehicle 200, the vehicle 200 may process dialogue with a user, by itself and provide a service needed for the user. However, the information needed for the dialogue processing and service provision may be brought from the external content server 300.

The vehicle state information or the driving environment information, e.g., an remaining amount of fuel, an amount of rain, a rain speed, surrounding obstacle information, a speed, an engine temperature, a tire pressure, current position, which is detected by a vehicle detector 260 may be input to the dialogue system 100 via the vehicle controller 240.

According to a response output from the dialogue system 100, the vehicle controller 240 may control the air conditioning device 251, the window 252, the door 253, the seat 254 or the AVN 255 provided in the vehicle 200.

For example, when the dialogue system 100 determines that the user's intention or the service needed for the user is to lower the temperature inside the vehicle 200 and then generates and outputs a corresponding command, the vehicle controller 240 may lower the temperature inside the vehicle 200 by controlling the air conditioner 251.

For another example, when the dialogue system 100 determines that the user's intention or the service needed for the user is to raise the driver's seat window 252 a and generates and outputs a corresponding command, the vehicle controller 240 may raise the driver's seat window 252 a by controlling the window 252.

For another example, when the dialogue system 100 determines that the user's intention or the service needed for the user is to guide a route to a certain destination and generates and outputs a corresponding command, the vehicle controller 240 may perform a route guidance by controlling the AVN 255. As needed, the communication device 280 may bring map data, and POI information from the external content server 300 and then use the information for the service provision.

FIGS. 11 and 12 are control block diagrams illustrating a vehicle gateway method in which a dialogue system is provided in a remote server and a vehicle acts as a gateway connecting a user to the dialogue system.

According to the vehicle gateway method, as illustrated in FIG. 11, a remote dialogue system server 1 may be provided in the outside of the vehicle 200, and a dialogue system client 270 connected via the remote dialogue system server 1 and the communication device 280 may be provided in the vehicle 200. The communication device 280 serves as a gateway for connecting the vehicle 200 and the remote dialogue system server 1.

The dialogue system client 270 may serve as an interface connected to an input/output device and perform collecting, and sending and receiving data.

When the speech input device 210 and the information except for speech input device 220 provided in the vehicle 200 receive a user's input and transmit the user input to the dialogue system client 270, the dialogue system client 270 may transmit the input data to the remote dialogue system server 1 via the communication device 280.

The vehicle controller 240 may also transmit data detected by the vehicle detector 260 to the dialogue system client 270 and the dialogue system client 270 may transmit the data detected by the vehicle detector 260 to the remote dialogue system server 1 via the communication device 280.

Since the above mentioned dialogue system 100 is provided in the remote dialogue system server 1, the remote dialogue system server 1 may perform all of input data processing, dialogue processing based on the result of the input data processing, and result processing based on the result of the dialogue processing.

In addition, the remote dialogue system server 1 may bring information or content needed for the input data processing, the dialogue management, or the result processing, from the external content server 300.

According to a response transmitted from the remote dialogue system server 1, the vehicle 200 may bring information or content for the service needed for the user from the external content server 300.

Referring to FIG. 12, the communication device 280 may include at least one communication module configured to communicate with an external device. For example, the communication device 280 may include at least one of a short range communication module 281, a wired communication module 282, and a wireless communication module 283.

The short-range communication module 281 may include a variety of short range communication modules, which is configured to transmit and receive a signal using a wireless communication module in the short range, e.g., Bluetooth module, Infrared communication module, Radio Frequency Identification (RFID) communication module, Wireless Local Access Network (WLAN) communication module, NFC communications module, and ZigBee communication module.

The wired communication module 282 may include a variety of wired communication module, e.g., Local Area Network (LAN) module, Wide Area Network (WAN) module, or Value Added Network (VAN) module and a variety of cable communication module, e.g., Universal Serial Bus (USB), High Definition Multimedia Interface (HDMI), Digital Visual Interface (DVI), recommended standard 232 (RS-232), power line communication or plain old telephone service (POTS).

The wireless communication module 283 may include a wireless communication module supporting a variety of wireless communication methods, e.g., Wifi module, Wireless broadband module, global System for Mobile (GSM) Communication, Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Time Division Multiple Access (TDMA), Long Term Evolution (LTE), 4G and 5G.

In addition, the communication device 280 may further include an internal communication module (not shown) for communication between electronic devices in the vehicle 200. The communication protocol of the vehicle 200 may use Controller Area Network (CAN), Local Interconnection Network (LIN), FlexRay, and Ethernet.

The dialogue system 100 may send and receive data to and from the external content server 300 or the remote dialogue system server 1 via the wireless communication module 283. The dialogue system 100 may perform the V2X communication using the wireless communication module 283. In addition, using the short range communication module 281 or the wired communication module 282, the dialogue system 100 may send and receive data to and from a mobile device connected to the vehicle 200.

FIG. 13 is a control block diagram illustrating a case in which the vehicle can perform some input processing and output processing in the vehicle gateway method.

As mentioned above, the dialogue system client 270 of the vehicle 200 may only collect and send and receive the data but the dialogue system client 270 may process data input from the user or the vehicle or perform a processing related to the service provision that is determined to be needed to the user, since an input processor 271, a result processor 273 and a storage 274 are contained in the dialogue system client 270, as illustrated in FIG. 13. That is, the operation of the input processor 110 and the result processor 130 may be performed by not only the remote dialogue system server 1 but also the vehicle 200.

In this case, the dialogue system client 270 may perform all or some operation of the input processor 110. The dialogue system client 270 may perform all or some operation of the result processor 130.

The task sharing between the remote dialogue system server 1 and the dialogue system client 270 may be determined in consideration of the capacity of the data to be processed and the data processing speed.

FIG. 14 is a control block diagram illustrating a hybrid method in which both of a remote dialogue system server and a vehicle perform a dialogue processing.

According to the hybrid method, as illustrated in FIG. 14, since the input processor 110, the dialogue manager 120, the result processor 130 and the storage 140 are provided in the remote dialogue system server 1, the remote dialogue system server 1 may perform the dialogue processing, and since a terminal dialogue system 290 provided with an input processor 291, a dialogue manager 292, a result processor 293 and a storage 294 is provided in the vehicle 200, the vehicle 200 may perform the dialogue processing.

However, there may be difference between a processor and a memory provided in the vehicle 200 and a processor or a memory provided in the remote dialogue system server 1 in the capacity or performance. Accordingly, when the terminal dialogue system 290 is capable of outputting a result by processing all the input data and managing the dialogue, the terminal dialogue system 290 may perform the entire process. Otherwise, it may be possible to request the processing to the remote dialogue system server 1.

Before performing the dialogue processing, the terminal dialogue system 290 may determine whether it is possible to perform the dialogue processing based on the data type, and the terminal dialogue system 290 may directly perform the processing or request the processing to the remote dialogue system server 1 based on the result of the determination.

When an event occurs in which the terminal dialogue system 290 cannot perform the process during performing the dialogue process, the terminal dialogue system 290 may request the processing to the remote dialogue system server 1 while transmitting a result that is processed by itself, to the remote dialogue system server 1.

For example, when the high-performance computing power or the long-term data processing is needed, the remote dialogue system server 1 may perform a dialogue processing and when the real time processing is needed, the terminal dialogue system 290 may perform the dialogue processing. For example, when an instant requiring immediate processing occurs and thus it is needed to process the data before the synchronization, it may be set such that the terminal dialogue system 290 firstly processes the data.

In addition, when there is an unregistered talker in the vehicle and thus a user confirmation is required, the remote dialogue system server 1 may process the dialogue.

Further, when the terminal dialogue system 290 is unable to complete the dialogue processing by itself in a state in which the connection with the remote dialogue system server 1 via the communication device 280 is not allowed, it may be possible to inform a user that the dialogue processing cannot be performed, via the dialogue output device 230.

Data stored in the terminal dialogue system 290 and data stored in the remote dialogue system server 1 may be determined according to the data type or the data capacity. For example, in the case of data having a risk of invasion of privacy because of personal identification, the data may be stored in the storage 294 of the terminal dialogue system 290. In addition, a large amount of data may be stored in the storage 140 of the remote dialogue system server 1, and a small amount of data may be stored in the storage 294 of the terminal dialogue system 290. Alternatively, a small amount of data may be stored in both of the storage 140 of the remote dialogue system server 1 and the storage 294 of the terminal dialogue system 290.

FIGS. 15 and 16 are control block diagrams illustrating a mobile gateway method in which a mobile device connected to a vehicle connects a user to a remote dialogue system server.

According to the mobile gateway method, as illustrated in FIG. 15, the mobile device 400 may receive the vehicle state information and the driving environment information, etc. from the vehicle 200, and transmit the user input and the vehicle state information to the remote dialogue system server 1. That is, the mobile device 400 may act as a gateway connecting a user to the remote dialogue system server 1 or connecting the vehicle 200 to the remote dialogue system server 1.

The mobile device 400 may represent an electronic device that is portable and capable of sending and receiving data to and from an external server and a vehicle by communicating with the external server and vehicle, wherein the mobile device 400 may include a smart phone, a smart watch, a smart glass, a PDA, and a tablet PC.

The mobile device 400 may include a speech input device 410 receiving a user's speech, an except for speech input device 420 receiving an input except for the user' speech, an output device 430 outputting a response in a visual, auditory or tactile manner, a communication device 480 sending and receiving data to and from the remote dialogue system server 1 and the vehicle 200 through the communication, and a dialogue system client 470 collecting input data from a user and transmitting the data to the remote dialogue system server 1 via the communication device 480.

The speech input device 410 may include a microphone receiving sound, converting the sound into an electrical signal and outputting the electrical signal.

The except for speech input device 420 may include an input button, a touch screen or a camera provided in the mobile device 400.

The output device 430 may include a display, a speaker or a vibrator provided in the mobile device 400.

The speech input device 410, the except for speech input device 420 and the output device 430 provided in the mobile device 400 may serve as an input and output interface for a user. In addition, the speech input device 210, the information except for speech input device 220, the dialogue output device 230 provided in the vehicle 200 may serve as an input and output interface for a user.

When the vehicle 200 transmits data detected by the vehicle detector 260 and the user input to the mobile device 400, the dialogue system client 470 of the mobile device 400 may transmit the data and the user input to the remote dialogue system server 1.

The dialogue system client 470 may transmit a response or a command transmitted from the remote dialogue system server 1, to the vehicle 200. When the dialogue system client 470 uses the dialogue output device 230 provided in the vehicle 200 as the input and output interface for the user, an utterance of the dialogue system 100 or a response to a user's utterance via may be output via the dialogue output device 230. When the dialogue system client 470 uses the output device 430 that is provided in the mobile device 400, an utterance of the dialogue system 100 or a response to a user's utterance may be output via the output device 430.

The command for the vehicle control may be transmitted to the vehicle 200 and the vehicle controller 240 may perform a control corresponding to the transmitted command, thereby providing the service needed for the user.

The dialogue system client 470 may collect the input data and transmit the input data to the remote dialogue system server 1. The dialogue system client 470 may also perform all or some function of the input processor 110 and the result processor 130 of the dialogue system 100.

Referring to FIG. 16, the communication device 480 of the mobile device 400 may include at least one communication module configured to communicate with an external device. For example, the communication device 480 may include at least one of a short range communication module 481, a wired communication module 482, and a wireless communication module 483.

The short-range communication module 481 may include a variety of short range communication modules, which is configured to transmit and receive a signal using a wireless communication module in the short range, e.g., Bluetooth module, Infrared communication module, Radio Frequency Identification (RFID) communication module, Wireless Local Access Network (WLAN) communication module, NFC communications module, and ZigBee communication module.

The wired communication module 482 may include a variety of wired communication module, e.g., Local Area Network (LAN) module, Wide Area Network (WAN) module, or Value Added Network (VAN) module and a variety of cable communication module, e.g., Universal Serial Bus (USB), High Definition Multimedia Interface (HDMI), Digital Visual Interface (DVI), recommended standard 232 (RS-232), power line communication or plain old telephone service (POTS).

The wireless communication module 483 may include a wireless communication module supporting a variety of wireless communication methods, e.g., Wifi module, Wireless broadband module, global System for Mobile (GSM) Communication, Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Time Division Multiple Access (TDMA), Long Term Evolution (LTE), 4G and 5G.

For example, the mobile device 400 may be connected to the vehicle 200 via the short range communication module 481 or the wired communication module 482, and the mobile device 400 may be connected to the remote dialogue system server 1 or the external content server 300 via the wireless communication module 483.

FIG. 17 is a control block diagram illustrating a mobile independent method in which a dialogue system is provided in a mobile device.

According to the mobile independent method, as illustrated in FIG. 17, the dialogue system 100 may be provided in the mobile device 400.

Therefore, without being connected to the remote dialogue system server 1 for the dialogue processing, the mobile device 400 may process dialogue with a user and provide a service needed for the user, by itself. However, the mobile device 400 may bring one piece of the information for the dialogue processing and service provision, from the external content server 300.

According to any method of the above-mentioned methods, components forming the dialogue system 100 may be physically separated from each other or some of the components may be omitted. For example, even when the dialogue system 100 is provided in the remote dialogue system server 1, some of components forming the dialogue system 100 may be provided in a separate server or the vehicle. An operator or a manger of the separate server may be the same as or different from that of the remote dialogue system server 1. For example, a speech recognizer or a natural language understanding portion described later may be provided in the separate server and the dialogue system 100 may receive a result of speech recognition or a result of natural language understanding about a user's utterance, from the separate server. Alternatively, the storage 140 may be provided in the separate server.

A description of the detailed configuration and detailed operation of each component of the dialogue system 100 will be described in detail. According to an form described later, for convenience of explanation, it is assumed that the dialogue system 100 is provided in the vehicle 200. Specific components of the dialogue system 100 described later may be classified according to an operation thereof, and there may be no limitation on whether the components is implemented by the same processor and memory or not and a physical position of the processor memory.

FIGS. 18, 19A and 19B are control block diagrams illustrating a configuration of an input processor in the configuration of the dialogue system in detail.

Referring to FIG. 18, the input processor 110 may include the speech input processor 111 processing the speech input and the context information processor 112 processing the context information.

The user's speech transmitted from the speech input device 210 may be input to the speech input processor 111 and the input except for the user's speech transmitted from the information except for speech input device 220 may be input to the context information processor 112.

The vehicle controller 240 may transmit the vehicle state information, the driving environment information and the user information to the context information processor 112. The driving environment information and the user information may be provided to the external content server 300 or the mobile device 400 connected to or the vehicle 200.

The input except for the speech may be contained in the context information. That is, the context information may include the vehicle state information, the driving environment information and the user information.

The vehicle state information may include information, which indicates the vehicle state and is acquired by a sensor provided in the vehicle 200, and information that is related to the vehicle, e.g., the fuel type of the vehicle, and stored in the vehicle.

The driving environment information may be information acquired by a sensor provided in the vehicle 200. The driving environment information may include image information acquired by a front camera, a rear camera or a stereo camera, obstacle information acquired by a sensor, e.g., a radar, a Lidar, an ultrasonic sensor, and information related to an amount of rain, and rain speed information acquired by a rain sensor.

The driving environment information may further include traffic state information, traffic light information, and adjacent vehicle access or adjacent vehicle collision risk information, which is acquired via the V2X.

The user information may include information related to user state that is measured by a camera provided in the vehicle or a biometric reader, information related to a user that is directly input using an input device provided in the vehicle by the user, information related to a user and stored in the external content server 300, and information stored in the mobile device 400 connected to the vehicle.

The speech input processor 111 may include an speech recognizer 111 a outputting an utterance in the text type by recognizing the input user's speech, a natural language understanding portion 111 b identifying the user's intention contained in the utterance by applying natural language understanding technology to the user utterance, and a dialogue input manager 111 c transmitting a result of the natural language understanding and the context information, to the dialogue manager 120.

The speech recognizer 111 a may include a speech recognition engine and the speech recognition engine may recognize a speech uttered by a user by applying a speech recognition algorithm to the input speech and generate a recognition result.

Since the input speech is converted into a more useful form for the speech recognition, the speech recognizer 111 a may detect an actual speech section included in the speech by detecting a start point and an end point from the speech signal. This is called End Point Detection (EPD).

The speech recognizer 111 a may extract the feature vector of the input speech from the detected section by applying the feature vector extraction technique, e.g., Cepstrum, Linear Predictive Coefficient: (LPC), Mel Frequency Cepstral Coefficient (MFCC) or Filter Bank Energy.

The speech recognizer 111 a may acquire the results of recognition by comparing the extracted feature vector with a trained reference pattern. At this time, the speech recognizer 111 a may use an acoustic model of modeling and comparing the signal features of a speech, and a language model of modeling a linguistic order relation of a word or a syllable corresponding to a recognition vocabulary. For this, the storage 140 may store the acoustic model and language model DB.

The acoustic model may be classified into a direct comparison method of setting a recognition target to a feature vector model and comparing the feature vector model to a feature vector of a speech signal, and a statistical method of statistically processing a feature vector of a recognition target.

The direct comparison method is setting a unit, such as a word or a phoneme, which is a recognition target, to a feature vector model, and comparing a received speech to the feature vector model to determine similarity between them. A representative example of the direct comparison method is vector quantization. The vector quantization is mapping feature vectors of a received speech signal to a codebook that is a reference model to code the results of the mapping to representative values, and comparing the representative values to each other.

The statistical model method is configuring units of a recognition target as state sequences and using a relationship between the state sequences. Each state sequence may be configured with a plurality of nodes. The method of using the relationship between the state sequences can be classified into Dynamic Time Warping (DTW), Hidden Markov Model (HMM), and a method of using a neural network.

The DTW is a method of compensating for differences in the time axis through comparison to a reference model in consideration of the dynamic feature of speech that the length of a signal varies over time even when the same person utters the same pronunciation. The HMM is a recognition method of assuming a speech as a Markov process having state transition probability and observation probability of nodes (output symbols) in each state, then estimating state transition probability and observation probability of nodes based on learning data, and calculating probability at which a received speech is to be generated from an estimated model.

Meanwhile, the language model of modeling a linguistic order relation of a word, a syllable, etc. may reduce acoustic ambiguity and recognition errors by applying an order relation between units configuring a language to units acquired through speech recognition. The language model may include a statistical language model, and a model based on Finite State Automata (FSA). The statistical language model uses chain probability of a word, such as Unigram, Bigram, and Trigram.

The speech recognizer 111 a may use any one of the above-described methods for the speech recognition. For example, the speech recognizer 111 a may use an acoustic model to which the HMM is applied, or a N-best search method in which an acoustic model is combined with a speech model. The N-best search method can improve recognition performance by selecting N recognition result candidates or less using an acoustic model and a language model, and then re-estimating an order of the recognition result candidates.

The speech recognizer 111 a may calculate a confidence value to ensure reliability of a recognition result. A confidence value may be criteria representing how a speech recognition result is reliable. For example, the confidence value may be defined, with respect to a phoneme or a word that is a recognized result, as a relative value of probability at which the corresponding phoneme or word has been uttered from different phonemes or words. Accordingly, a confidence value may be expressed as a value between 0 and 1 or between 1 and 100.

When the confidence value is greater than a predetermined threshold value, the speech recognizer 111 a may output the recognition result to allow an operation corresponding to the recognition result to be performed. When the confidence value is equal to or less than the threshold value, the speech recognizer 111 a may reject the recognition result.

The utterance in the form of text that is the recognition result of the speech recognizer 111 a may be input to the natural language understanding portion 111 b.

The natural language understanding portion 111 b may identify an intention of user's utterance included in an utterance language by applying the natural language understanding technology. Therefore, the user may input a control command through a natural dialogue, and the dialogue system 100 may also induce the input of the control command and provide a service needed the user via the dialogue.

The natural language understanding portion 111 b may perform morphological analysis on the utterance in the form of text. A morpheme is the smallest unit of meaning and represents the smallest semantic element that can no longer be subdivided. Thus, the morphological analysis is a first step in natural language understanding and transforms the input string into the morpheme string.

The natural language understanding portion 111 b may extract a domain from the utterance based on the morphological analysis result. The domain may be used to identify a subject of a user utterance language, and the domain indicating a variety of subjects, e.g., route guidance, weather search, traffic search, schedule management, fuel management and air conditioning control, may be stored as a database.

The natural language understanding portion 111 b may recognize an entity name from the utterance. The entity name may be a proper noun, e.g., people names, place names, organization names, time, date, and currency, and the entity name recognition may be configured to identify an entity name in a sentence and determine the type of the identified entity name. The natural language understanding portion 111 b may extract important keywords from the sentence using the entity name recognition and recognize the meaning of the sentence.

The natural language understanding portion 111 b may analyze a speech act contained in the utterance. The speech act analysis may be configured to identify the intention of the user utterance, e.g., whether a user asks a question, whether a user asks a request, whether a user responses or whether a user simply expresses an emotion.

The natural language understanding portion 111 b extracts an action corresponding to the intention of the user's utterance. The natural language understanding portion 111 b may identify the intention of the user's utterance based on the information, e.g., domain, entity name, and speech act and extract an action corresponding to the utterance. The action may be defined by an object and an operator.

The natural language understanding portion 111 b may extract a parameter related to the action execution. The parameter related to the action execution may be an effective parameter that is directly required for the action execution, or an ineffective parameter that is used to extract the effective parameter.

For example, when a user's utterance is “let's go to Seoul station”, the natural language understanding portion 111 b may extract “navigation” as a domain corresponding to the utterance, and “route guidance” as an action, wherein a speech act corresponds to “request”.

The entity name “Seoul station” may correspond to [parameter destination] related to the action execution, but a specific exit number of the station or GPS information may be required to practically guide a route via the navigation system. In this case, [parameter destination: Seoul station] extracted by the natural language understanding portion 111 b may be a candidate parameter for searching “Seoul station” that is actually desired by the user among a plurality of Seoul station POI.

The natural language understanding portion 111 b may extract a tool configured to express a relationship between words or between sentences, e.g., parse-tree.

The morphological analysis result, the domain information, the action information, the speech act information, the extracted parameter information, the entity name information and the parse-tree, which is the processing result of the natural language understanding portion 111 b may be transmitted to the dialogue input manager 111 c.

The context information processor 112 may include a context information collector 112 a collecting information from the information except for speech input device 220 and the vehicle controller 240, a context information collection manager 112 b managing the collection of the context information, and a context understanding portion 112 c understanding context based on the result of the natural language understanding and the collected context information.

The input processor 110 may include a memory in which a program for performing the above-described operation and the operation described later is stored, and a processor for executing the stored program. At least one memory and one processor may be provided, and when a plurality of memory and processors are provided, they may be integrated on one chip or physically separated.

The speech input processor 111 and the context information processor 112 contained in the input processor 110 may be implemented by the same processor and memory or a separate processor and memory.

Hereinafter, a method in which components of the input processor 110 process the input data using information stored in the storage 140 will be described in detail with reference to FIGS. 19A and 19B.

Referring to FIG. 19A, the natural language understanding portion 111 b may use the domain/action inference rule DB 141 for the domain extraction, entity recognition, the speech act analysis and the action extraction.

In the domain/action inference rule DB 141, domain extraction rules, speech act analysis rules, entity name conversion rules, action extraction rules may be stored.

Other information such as the user input except for the speech, the vehicle state information, the driving environment information and the user information may be input to the context information collector 112 a and then stored in a context information DB 142, the long-term memory 143, or the short-term memory 144.

For example, raw data detected by the vehicle detector 260 may be classified into a sensor type and a sensor value and then stored in the context information DB 142.

In the short-term memory 144 and long-term memory 143, data that is meaningful to the user may be stored, wherein the data may include the current user state, the user's preference and orientation or data for determining the user's preference and orientation.

As described above, information that ensures the persistence and thus is usable in the long term, may be stored in the long-term memory 143, wherein the information may include the user's phone book, schedule, preferences, educational history, personality, job, and information related to family.

Information that does not ensure the persistence or has uncertainties and thus is usable in the short term may be stored in the short-term memory 144, wherein the information may include the current and previous position, today schedule, the previous dialogue content, dialogue participants, circumstances, domains, and driver state. According to data type, there may be data stored in at least two storages among the context information DB 142, the short-term memory 144 and the long-term memory 143 in duplicate.

In addition, among the information stored in the short-term memory 144, data, which is determined to ensure the persistence, may be transmitted to the long-term memory 143.

It may be possible to acquire information to be stored in the long-term memory 143 using information stored in the short-term memory 144 and the context information DB 142. For example, the user's preference may be acquired by analyzing destination information that is stored for certain duration or the dialogue content, and the acquired user's preference may be stored in the long-term memory 143.

By using information stored in the short-term memory 144 or the context information DB 142, it may be performed to obtain information to be stored in the long-term memory 143 in the dialogue system 100, or in an additional external system.

It may possible to perform the former case in the memory manager 135 of the result processor 130. In this case, among the data stored in the short-term memory 144 or the context information DB 142, data used to acquire meaningful information, e.g., the user's preference or orientation or persistent information may be stored in the long-term memory 143 in the log file type. The memory manager 135 may acquire persistent data by analyzing data that is stored for more than certain duration, and re-sore the data in the long-term memory 143. In the long-term memory 143, a location in which the persistent data is stored may be different from a location in which the data stored in the log file type is stored.

The memory manager 135 may determine persistent data among data stored in the short-term memory 144 and move and store the determined data to and in the long-term memory 143.

When obtaining information to be stored in the long-term memory 143 using information stored in the short-term memory 144 or the context information DB 142 is performed in the an additional external system, a data management system 800 provided with a communicator 810, a storage 820 and a controller 830 may be used, as illustrated in FIG. 19B.

The communicator 810 may receive data stored in the context information DB 142 or the short-term memory 144. All data stored may be transmitted to the communicator 810 or the data used to acquire meaningful information, e.g., the user's preference or orientation or persistent information may be selected and then transmitted. The received data may be stored in the storage 820.

The controller 830 may acquire the persistent data by analyzing the stored data and then transmit the acquired data to the dialogue system 100 via the communicator 810. The transmitted data may be stored in the long-term memory 143 of the dialogue system 100.

In addition, the dialogue input manager 111 c may acquire context information related to the action execution by transmitting the result of the output of the natural language understanding portion 111 b to the context understanding portion 112 c.

The context understanding portion 112 c may determine which context information is related to the action execution corresponding to the intention of the user's utterance, by referring to context information that is stored according to the action in a context understating table 145.

FIGS. 20A and 20B are views illustrating an example of information stored in a context understanding table.

Referring to an example of FIG. 20A, context information and the type of the context information related to the action execution may be stored in the context understating table 145 according to each action.

For example, when the action is route guidance, the current position may be needed as the context information and the type of the context information may be GPS information. When the action is vehicle state check, distance traveled may be needed as the context information and the type of the context information may be integer. When the action is gasoline station recommendation, an amount of remaining fuel and distance to empty (DTE) may be needed as the context information and the type of the context information may be integer.

When context information related to the action execution corresponding to the intention of the user's utterance is pre-stored in the context information DB 142, the long-term memory 143 or the short-term memory 144, the context understanding portion 112 c may bring the corresponding information from the context information DB 142, the long-term memory 143 or the short-term memory 144 and transmit the corresponding information to the dialogue input manager 111 c.

When context information related to the action execution corresponding to the intention of the user's utterance is not stored in the context information DB 142, the long-term memory 143 or the short-term memory 144, the context understanding portion 112 c may request needed information to the context information collection manager 112 b. The context information collection manager 112 b may allow the context information collector 112 a to collect the needed information.

The context information collector 112 a may periodically collect data, or collect data only when a certain event occurs. In addition the context information collector 112 a may periodically collect data and then additionally collect data when a certain event occurs. Further, when receiving a data collection request from the context information collection manager 112 b, the context information collector 112 a may collect data.

The context information collector 112 a may collect the needed information and then store the information in the context information DB 142 or the short-term memory 144. The context information collector 112 a may transmit a confirmation signal to the context information collection manager 112 b.

The context information collection manager 112 b may transmit the confirmation signal to the context understanding portion 112 c and the context understanding portion 112 c may bring the needed information from the long-term memory 143 or the short-term memory 144 and then transmit the information to the dialogue input manager 111 c.

Particularly, when the action corresponding to the intention of the user's utterance is the route guidance, the context understanding portion 112 c may search the context understating table 145 and recognize that context information related to the route guidance is the current position.

When the current position is pre-stored in the short-term memory 144, the context understanding portion 112 c may bring the current position and transmit the current position to the dialogue input manager 111 c.

When the current position is not stored in the short-term memory 144, the context understanding portion 112 c may request the current position to the context information collection manager 112 b and the context information collection manager 112 b may allow the context information collector 112 a to acquire the current position from the vehicle controller 240.

The context information collector 112 a may acquire the current position and then store the current position in the short-term memory 144. The context information collector 112 a may transmit a confirmation signal to the context information collection manager 112 b. The context information collection manager 112 b may transmit the confirmation signal to the context understanding portion 112 c and the context understanding portion 112 c may bring the current position information from the short-term memory 144 and then transmit the information to the dialogue input manager 111 c.

The dialogue input manager 111 c may transmit the output of the natural language understanding portion 111 b and the output of the context understanding portion 112 c to the dialogue manager 120 and the dialogue input manager 111 c may manage to prevent the duplicate input from entering to the dialogue manager 120. In this time, the output of the natural language understanding portion 111 b and the output of the context understanding portion 112 c may be combined as one output and then transmitted to the dialogue manager 120 or independently transmitted to the dialogue manager 120.

When the context information collection manager 112 b determines that a certain event occurs since data collected by the context information collector 112 a meets a predetermined condition, the context information collection manager 112 b may transmit an action trigger signal to the context understanding portion 112 c.

The context understanding portion 112 c may search the context understating table 145 for searching for context information related to the corresponding event, and when the searched context information is not stored in the context understating table 145, the context understanding portion 112 c may transmit a context information request signal to the context information collection manager 112 b, again.

As illustrated in FIG. 20B, context information and the type of the context information related to the event may be stored in the context understating table 145 according to each event.

For example, when the generated event is engine temperature warning, an engine temperature in the form of integer may be stored as the context information related to the event. When the generated event is driver drowsy driving detection, driver drowsy driving status in the form of integer may be stored as the context information related to the event. When the generated event is tire air pressure shortage, tire air pressure in the form of integer may be stored as the context information related to the event. When the generated event is fuel warning, distance to empty (DTE) in the form of integer may be stored as the context information related to the event. When the generated event is sensor error, sensor name in the form of text may be stored as the context information related to the event.

The context information collection manager 112 b may collect the needed context information via the context information collector 112 a and transmit a confirmation signal to the context understanding portion 112 c. The context understanding portion 112 c may bring the needed context information from the context information DB 142, the long-term memory 143 or the short-term memory 144 and then transmit the context information together with the action information to the dialogue input manager 111 c.

The dialogue input manager 111 c may input the output of the context understanding portion 112 c to the dialogue manager 120.

Hereinafter a case in which the dialogue system 100 outputs a pre-utterance by itself before a user's utterance is input will be described.

FIG. 21 is a control block diagram illustrating a dialogue system applicable to a case in which the dialogue system first outputs an utterance before receiving a user's input and FIGS. 22A, 22B and 22C are views illustrating an example of information stored in a pre-utterance condition table.

Referring to FIG. 21, the input processor 110 of the dialogue system 100 may further include a pre-utterance determiner 151 determining whether it is a pre-utterance context, and a duplicate task processor 152. The storage 140 may further include a pre-utterance condition table 145 a storing pre-utterance conditions, and a task processing DB 145 b.

Data stored in the context information DB 142, the long-term memory 143, and the short-term memory 144 may be transmitted to the pre-utterance determiner 151. The pre-utterance determiner 151 may analyze the transmitted data and determine whether the transmitted data is satisfied to the pre-utterance condition stored in the pre-utterance condition table 145 a.

Referring to an example of FIG. 22A, in the pre-utterance condition table 145 a, a pre-utterance condition related to context information and a pre-utterance message, which is output when a corresponding pre-utterance condition is satisfied, may be stored for each context information.

When the context information transmitted from the context information DB 142 satisfies the pre-utterance condition, the pre-utterance determiner 151 may determine that it is the pre-utterance context, and generate a pre-utterance trigger signal.

The pre-utterance determiner 151 may transmit the pre-utterance trigger signal to the context understanding portion 112 c with a pre-utterance message corresponding to the corresponding pre-utterance context. Further, the pre-utterance determiner 151 may transmit information related to the corresponding pre-utterance context. The information related to the corresponding pre-utterance context may include a pre-utterance condition corresponding to the corresponding pre-utterance context or an action corresponding to the pre-utterance context, described later.

For example, when context information is related to a tire air pressure and the tire air pressure is equal to or less than a predetermined reference value, the pre-utterance condition may be satisfied. When the pre-utterance condition of the tire air pressure is satisfied, the pre-utterance determiner 151 may determine that a pre-utterance context is caused by the tire air pressure shortage, and generate a pre-utterance trigger signal.

The pre-utterance determiner 151 may transmit the pre-utterance trigger signal with a pre-utterance message, to the context understanding portion 112 c. For example, in the pre-utterance context caused by the tire air pressure shortage, a pre-utterance message indicating that the tire air pressure is low such as “tire pressure is too low”, may be transmitted to the context understanding portion 112 c.

In addition, when context information is related to an engine temperature and the engine temperature is equal to or higher than a predetermined reference value, the pre-utterance condition may be satisfied. When the pre-utterance condition of the engine temperature is satisfied, the pre-utterance determiner 151 may determine that a pre-utterance context is caused by the abnormality in the engine temperature, and generate a pre-utterance trigger signal.

The pre-utterance determiner 151 may transmit the pre-utterance trigger signal with a pre-utterance message, to the context understanding portion 112 c. For example, in the pre-utterance context caused by the abnormality in the engine temperature, a pre-utterance message indicating that the engine is overheated such as “engine temperature is too high”, may be transmitted to the context understanding portion 112 c.

In addition, when context information is related to a remaining amount of gasoline and the remaining amount of gasoline is equal to or less than a predetermined reference value, the pre-utterance condition may be satisfied. When the user sets a destination using the navigation service of the vehicle, the predetermined reference value may be set based on a distance from the current position to the destination. When the destination is not set, a default value may be applied as the reference value. For example, when a value smaller than a reference value for indicating a fuel shortage warning lamp, may be set as the reference value for the pre-utterance condition related to the remaining amount of gasoline shortage. When the pre-utterance condition of the remaining amount of gasoline is satisfied, the pre-utterance determiner 151 may determine that a pre-utterance context is caused by the shortage of the remaining amount of gasoline, and generate a pre-utterance trigger signal.

The pre-utterance determiner 151 may transmit the pre-utterance trigger signal with a pre-utterance message, to the context understanding portion 112 c. For example, in the pre-utterance context caused by the shortage of the remaining amount of gasoline, a pre-utterance message indicating that the remaining amount of gasoline is insufficient such as “the remaining amount of gasoline is not enough to the destination”, may be transmitted to the context understanding portion 112 c.

However, the pre-utterance condition and the pre-utterance message shown in FIG. 22A are merely examples that can be applied to the dialogue system 100. In the above-described example, a case in which the pre-utterance message corresponding to the pre-utterance context is a content informing the current situation has been described. However, it may be also possible that the dialogue system 100 first suggests execution of a specific function or service required for the pre-utterance context.

Referring to FIG. 22B, when the pre-utterance context is caused by the tire air pressure shortage or the abnormality in the engine temperature, it may be possible to store a pre-utterance message corresponding to a content, which proactively suggests a repair shop reservation service, such as “do you want to book the repair shop?”.

In addition, when the pre-utterance context is caused by the shortage of remaining gasoline, it may be possible to store a pre-utterance message corresponding to a content, which proactively suggests a gasoline station guidance service, such as “do you want to guide the gasoline station?”.

In addition, when the pre-utterance context is caused by the internal temperature of the vehicle and when the internal temperature of the vehicle is out of a predetermined reference range, a pre-utterance condition may be satisfied. When the pre-utterance condition of the internal temperature of the vehicle is satisfied, the context understanding portion 112 c may determine that a pre-utterance context is caused by the abnormality in the internal temperature of the vehicle, and generate a pre-utterance trigger signal.

In the pre-utterance context caused by the abnormality in the internal temperature of the vehicle, it may be possible to store a pre-utterance message corresponding to a content, which proactively suggests an internal temperature control function, such as “do you want to operate the air conditioner?”.

In addition, when the context information is related to the microphone input and when a microphone input value is equal to or less than a predetermined reference value, a pre-utterance condition may be satisfied. When the pre-utterance condition of the microphone input is satisfied, the context understanding portion 112 c may determine that it is a pre-utterance context for changing the mood, and generate a pre-utterance trigger signal. Accordingly, it may be possible to store a pre-utterance message corresponding to a content, which proactively suggests a multi-media playing service, such as “do you want to play the music?”.

In addition, when the context information is related to the open and close of the window and whether it is raining, and when the window is open and it is raining, the pre-utterance condition may be satisfied. When the window is open and it is raining, the context understanding portion 112 c may determine that a pre-utterance context is caused by the open of the window, and generate a pre-utterance trigger signal.

In the pre-utterance context caused by the open of the window, it may be possible to store a pre-utterance message corresponding to a content, which proactively suggests a window close function, such as “do you want to close the window?”.

In the above-mentioned example of FIGS. 22A and 22B, a case in which the pre-utterance message corresponding to the pre-utterance context is pre-stored in the pre-utterance condition table 145 a has been described. However, the example of the dialogue system 100 is not limited thereto, and thus an action corresponding to the pre-utterance context may be pre-stored.

As mentioned above, when the user's utterance is input, the natural language understanding portion 111 b may extract an action corresponding to the user's utterance with reference to the domain/action inference rule DB 141. When the dialogue system 100 outputs the pre-utterance, an action corresponding to the pre-utterance context may be pre-stored upon each pre-utterance context, as illustrated in FIG. 22C.

For example, when the pre-utterance context is caused by the abnormality in the tire air pressure and the engine temperature, “repair shop guidance” may be stored as the corresponding action, and when the pre-utterance context is caused by the lack of remaining amount of gasoline, “gasoline station guidance” may be stored as the corresponding action.

In addition, when the pre-utterance context is caused by the abnormality in the internal temperature of the vehicle, “the air conditioner operation” may be stored as the corresponding action, and when the pre-utterance context is for the change of mood, “multi-media play” may be stored as the corresponding action. When the pre-utterance context is caused by the open of the window, “the open and close of the window” may be stored as the corresponding action.

As mentioned above, when the action corresponding to the pre-utterance context is pre-stored, the pre-utterance trigger signal with the action corresponding to the pre-utterance context may be transmitted to the context understanding portion 112 c, and the dialogue input manager 111 c may input the pre-utterance trigger signal with the action corresponding to the pre-utterance context, to the dialogue manager 120. In this case, an operation, which is the same as a case in which the user utterance is input, may be performed in the dialogue manager 120.

For another example, in the pre-utterance condition table 145 a, the pre-utterance context may be stored in such a manner that the pre-utterance context is matched with a virtual user utterance corresponding to each of the pre-utterance context, and the pre-utterance determiner 151 may generate a virtual user utterance corresponding to the pre-utterance context. The pre-utterance determiner 151 may transmit the user utterance which is stored in the pre-utterance condition table 145 a or generated by the pre-utterance determiner 151, to the natural language understanding portion 111 b in the text type. For example, when the pre-utterance context is caused by the abnormality in the tire air pressure, a virtual user utterance, such as “check the tire pressure” or “guide to the repair shop” may be stored or generated. In addition, when the pre-utterance context is caused by the abnormality in the internal temperature of the vehicle, a virtual user utterance, such as “turn on the air conditioner” may be stored or generated.

In addition, according to the mobile gateway method in which the mobile device 400 acts as a gateway between the vehicle and the dialogue system 100, the dialogue system client 470 of the mobile device 400 may perform some of operations of the pre-utterance determiner 151. In this case, the dialogue system client 470 may generate a virtual user utterance corresponding to the pre-utterance context and transmit the virtual user utterance to the natural language understanding portion 111 b.

The natural language understanding portion 111 b may extract a domain and an action corresponding to the transmitted virtual user utterance, and transmit the domain and action to the dialogue input manager 111 c. The action extracted by the natural language understanding portion 111 b may become an action corresponding to the pre-utterance context. A process, which is performed after the action corresponding to the pre-utterance context is transmitted to the dialogue manager 120, may be performed in the same manner as the case in which the user firstly utters.

The above-mentioned context information, pre-utterance condition, pre-utterance message, and action are merely examples applied to forms of the dialogue system 100, but forms of the dialogue system 100 are not limited thereto. In addition, a variety of context information, pre-utterance conditions, pre-utterance messages, and actions may be stored.

When the pre-utterance determiner 151 transmits information related to the pre-utterance trigger signal and the pre-utterance context, to the context understanding portion 112 c, the context understanding portion 112 c may transmit the information related to the pre-utterance context, to the duplicate task processor 152.

The duplicate task processor 152 may determine whether a task, which is related to the pre-utterance context that currently occurs, is already processed, or whether the task is a duplicate task.

In the task processing DB 145 b, information related to the task which is already processed or currently processed may be stored. For example, dialogue history (including dialogue content and each dialogue time), a vehicle state and whether a task is completed in the dialogue time, etc. may be stored. In addition, a result of processing and a task process, such as a route guidance using the navigation function regardless of the dialogue, may be stored.

Particularly, when the pre-utterance context is caused by the lack of remaining amount of gasoline, the duplicate task processor 152 may determine whether a gasoline station guidance task is currently processed or not, based on the information stored in the task processing DB 145 b. When a dialogue for the gasoline station guidance is currently performed or a gasoline station guidance action is currently performed, the duplicate task processor 152 may determine that a task related to the current pre-utterance context, is a duplicate task, and terminate the pre-utterance context.

Further, when an utterance for the gasoline station guidance is previously output and when a dialogue history in which a user rejects the gasoline station guidance, is present, the duplicate task processor 152 may determine that a task related to the current pre-utterance context, is a duplicate task, and terminate the pre-utterance context.

Further, when the gasoline station guidance task using the navigation function is currently processed regardless of the dialogue history for the gasoline station guidance, the duplicate task processor 152 may determine that a task related to the current pre-utterance context, is a duplicate task, and terminate the pre-utterance context. The duplicate task processor 152 may recognize that the gasoline station guidance task using the navigation function is currently processed, based on the information stored in the task processing DB 145 b.

Further, when a reference period of time is not elapsed from when a dialogue, which is related to the guidance of the remaining amount of gasoline, is performed, it may be assumed that the user drives to the gasoline station by himself or herself although the gasoline station guidance is currently not performed. Therefore, the duplicate task processor 152 may determine that a task related to the current pre-utterance context, is a duplicate task, and terminate the pre-utterance context.

Further, in a state in which a pre-utterance context is for indicating a schedule based on information, such as user's birthday or family members birthday, stored in the long-term memory 143, when a dialogue history, in which the same schedule is previously guided, is present and a reference period of time is not elapsed from when the corresponding dialogue is performed, the duplicate task processor 152 may determine that a task related to the current pre-utterance context, is a duplicate task and terminate the pre-utterance context.

That is, the duplicate task processor 152 may determine whether the pre-utterance is previously output, and the user intention about the pre-utterance context, based on the dialogue history stored in the task processing DB 145 b. The duplicate task processor 152 may determine whether it is the duplicate task, based on the stored dialogue time, the user's intention, the vehicle state or the completion of the task.

In the duplicate task processor 152, a policy configured to determine whether it is the duplicate task, that is, whether to terminate the pre-utterance context, based on the information stored in the task processing DB 145 b, may be stored. The duplicate task processor 152 may determine whether the task related to the current pre-utterance context, is a duplicate task, according to the stored policy, and when it is determined that it is the duplicate task, the duplicate task processor 152 may terminate the pre-utterance context.

In the above-mentioned example, a case in which the dialogue system 100 includes the pre-utterance determiner 151, the duplicate task processor 152, the pre-utterance condition table 145 a and the task processing DB 145 b has been described.

However, the example of the dialogue system 100 is not limited thereto, and thus it may be possible for the components shown in FIGS. 19A and 19B to perform the operation of the above-mentioned components.

For example, the context understanding portion 112 c may perform the operation of the pre-utterance determiner 151 corresponding to determining whether to satisfy the pre-utterance condition, and the operation of the duplicate task processor 152 corresponding to processing the duplicate task.

The information stored in the pre-utterance condition table 145 a may be stored in the context understating table 145 and the information stored in the task processing DB 145 b may be stored in a dialogue and action state DB 147 described later.

FIG. 23 is a control block diagram illustrating a configuration of a dialogue manager in detail, FIG. 24 is a view illustrating an example of information stored in a relational action DB, FIG. 25 is a view illustrating an example of information stored in an action execution condition DB, and FIG. 26 is a view illustrating an example of information stored in an action parameter DB.

Referring to FIG. 23, the dialogue manager 120 may include a dialogue flow manager 121 requesting for generating, deleting and updating dialogue or action; a dialogue action manager 122 generating, deleting and updating dialogue or action according to the request of the dialogue flow manager 121; an ambiguity solver 123 clarifying a user's intention by resolving an ambiguity of context and an ambiguity of dialogue; a parameter manager 124 managing parameters needed for the action execution; an action priority determiner 125 determining whether an action is executable about a plurality of candidate actions; and an external information manager 126 managing an external content list and related information, and managing parameter information for an external content query.

The dialogue manager 120 may include a memory in which a program for performing the above-described operation and the operation described later is stored, and a processor for executing the stored program. At least one memory and one processor may be provided, and when a plurality of memory and processors are provided, they may be integrated on one chip or physically separated.

Each component contained in the dialogue manager 120 may be implemented by the same processor or by a separate processor.

In addition, the dialogue manager 120 and the input processor 110 may be implemented by the same processor or by a separate processor.

When the user utterance is input or when the user utterance matched with the pre-utterance context is transmitted to the natural language understanding portion 111 b, the dialogue input manager 111 c may transmit the result of the natural language understanding (the output of the natural language understanding portion) and context information (the output of the context understanding portion) to the dialogue flow manager 121. In addition, when the pre-utterance context occurs, the dialogue input manager 111 c may transmit the pre-utterance trigger signal.

The output of the natural language understanding portion 111 b may include information which is related to the user's utterance content, e.g., a morphological analysis result, as well as information, e.g., domain and action. The output of the context understanding portion 112 c may include events determined by the context information collection manager 112 b, as well as the context information.

The dialogue flow manager 121 may search for whether a dialogue task or an action task corresponding to the input by the dialogue input manager 111 c is present in the dialogue and action state DB 147.

The dialogue and action state DB 147 may be a storage space for managing the dialogue state and the action state, and thus the dialogue and action state DB 147 may store currently progressing dialogue and action, and dialogue state and action state related to preliminary actions to be processed. For example, the dialogue and action state DB 147 may store states related to completed dialogue and action, stopped dialogue and action, progressing dialogue and action, and dialogue and action to be processed.

The dialogue and action state DB 147 may store last output state related to whether to switch and to nest an action, switched action index, action change time, and screen/voice/command.

For example, in a case in which the domain and the action corresponding to a user utterance is extracted, when dialogue and action corresponding to the corresponding domain and action is present in the most recently stored dialogue, the dialogue and action state DB 147 may determine it as the dialogue task or action task corresponding to the input from the dialogue input manager 111 c.

When the domain and the action corresponding to a user utterance is not extracted, the dialogue and action state DB 147 may generate a random task or request that the dialogue action manager 122 refers to the most recently stored task.

When the dialogue task or action task corresponding to the input of the input processor 110 is not present in the dialogue and action state DB 147, the dialogue flow manager 121 may request that the dialogue action manager 122 generates new dialogue task or action task.

Further, when the pre-utterance trigger signal is transmitted from the input processor 110, it may be possible to temporarily stop the dialogue task or the action task although the dialogue task or the action task, which is currently performed, is present, and it may be possible to firstly generate a dialogue task or an action task corresponding to the pre-utterance context. In addition, it may be possible to select the priority according to the established rules.

When the pre-utterance trigger signal and an action corresponding to the pre-utterance trigger signal are input from the dialogue input manager 111 c, the dialogue flow manager 121 may request that the dialogue action manager 122 generates new dialogue task or action task, which is the same manner as the case in which the action is obtained from the user utterance.

Further, when the pre-utterance trigger signal and a pre-utterance message corresponding to the pre-utterance trigger signal are input from the dialogue input manager 111 c, the dialogue flow manager 121 may request that the dialogue action manager 122 generates new dialogue task or action task for outputting the input pre-utterance message.

When the dialogue flow manager 121 manages the dialogue flow, the dialogue flow manager 121 may refer to a dialogue policy DB 148. The dialogue policy DB 148 may store a policy to continue the dialogue, wherein the policy may represent a policy for selecting, starting, suggesting, stopping and terminating the dialogue.

In addition, the dialogue policy DB 148 may store a point of time in which a system outputs a response, and a policy about a methodology. The dialogue policy DB 148 may store a policy for generating a response by linking multiple services and a policy for deleting previous action and replacing the action with another action.

For example, two policies may be allowed, wherein the two polices may include a policy in which a response for two actions is generated at once, e.g., “Is it needed to perform B action after performing A action?” and a policy in which a separate response for another action is generated after a response for an action is generated, e.g., “A action is executed”□→“Do you want to execute B action?”.

The dialogue and action state DB 147 may store a policy for determining the priority among the candidate actions. A priority determination policy will be described later.

The dialogue action manager 122 may designate a storage space to the dialogue and action state DB 147 and generate dialogue task and action task corresponding to the output of the input processor 110.

When it is impossible to extract a domain and an action from the user's utterance, the dialogue action manager 122 may generate a random dialogue state. In this case, as mentioned later, the ambiguity solver 123 may identify the user's intention based on the content of the user's utterance, the environment condition, the vehicle state, and the user information, and determine an action appropriate for the user's intention.

When the dialogue task or action task corresponding to the output of the input processor 110 is present in the dialogue and action state DB 147, the dialogue flow manager 121 may request that the dialogue action manager 122 refers to the corresponding dialogue task or action task.

The action priority determiner 125 may search the relational action DB 146 b to search for an action list related to the action or the event contained in the output of the input processor 110, and then the action priority determiner 125 may extract the candidate action. As illustrated in FIG. 24, the relational action DB 146 b may indicate actions related to each other, a relationship among the actions, an action related to an event and a relationship among the events. For example, the route guidance, the vehicle state check, and gasoline station recommendation may be classified as the relational action, and a relationship thereamong may correspond to an association.

Therefore, when executing the route guidance, the vehicle state check and gasoline station recommendation may be performed together. In this case, “performing together” may include a case in which the vehicle state check and gasoline station recommendation are performed before or after the route guidance and a case in which the vehicle state check and gasoline station recommendation are performed during the route guidance (e.g., adding as a stopover).

A warning light output event may be stored as an event-action related to a repair shop guidance action and a relationship therebetween may correspond to an association.

When the warning light output event occurs, the repair shop guidance action may be performed according to the warning light type or whether to need the repair.

When the input processor 110 transmit an action corresponding to the user's utterance together with an event determined by the context information collection manager 112 b, an action related to the action corresponding to the user's utterance and an action related to the event may become a candidate action.

The extracted candidate action list may be transmitted to the dialogue action manager 122 and the dialogue action manager 122 may update the action state of the dialogue and action state DB 147 by adding the candidate action list.

The action priority determiner 125 may search for conditions to execute each candidate action in an action execution condition DB 146 c.

As illustrated in FIG. 25, the action execution condition DB 146 c may store conditions, which are needed for performing the action, and parameters, which are to determine whether to meet the corresponding condition, according to each action.

For example, an execution condition for the vehicle state check may be a case in which a destination distance is equal to or greater than 100 km, wherein a parameter for determining the condition may correspond to the destination distance. A condition for the gasoline station recommendation may be a case in which a destination distance is greater than a distance to empty (DTE), wherein a parameter for determining the condition may correspond to the destination distance and the distance to empty (DTE).

The action priority determiner 125 may transmit the execution condition of the candidate action to the dialogue action manager 122 and the dialogue action manager 122 may add the execution condition according to each candidate action and update the action state of the dialogue and action state DB 147.

The action priority determiner 125 may search for a parameter that is needed to determine an action execution condition (hereinafter refer to condition determination parameter), from the context information DB 142, the long-term memory 143, the short-term memory 144 or the dialogue and action state DB 147, and determine whether it is possible to execute the candidate action, using the searched parameter.

When a parameter used to determine an action execution condition is not stored in the context information DB 142, the long-term memory 143, the short-term memory 144 or the dialogue and action state DB 147, the action priority determiner 125 may bring the needed parameter from the external content server 300 via the external information manager 126.

The action priority determiner 125 may determine whether it is possible to perform the candidate action using the parameter used to determine an action execution condition. In addition, the action priority determiner 125 may determine the priority of the candidate action based on whether to perform the candidate action and priority determination rules stored in the dialogue policy DB 148.

A score for each candidate action may be calculated according to the current situation. A higher priority may be given to a candidate action having more of calculated score. For example, an action corresponding to the user's utterance, a safety score, a convenience score, a processing time, a processing point of time (whether to immediately process or not), a user preference (the user's reception level when suggesting a service or a preference pre-determined by a user), an administrator score, a score related to vehicle state, and an action success rate (dialogue success rate) may be used as a parameter for calculating the score, as illustrated in the following equation 1. w1, w2, w3, w4, w5, w6, w7, w8, and w9 represent a weight value for each parameter. Priority score=w1*user utterance action+w2*safety score+w3*convenience score+w4*processing time+w5*processing point of time+w6*user preference+w7*administrator score+w8*score related to vehicle state+w9*action success rate*possibility of action execution (1: possible, not yet known, 0: impossible)*action completion status (completion: 1, incompletion: 0).  [Equation 1]

As mentioned above, the action priority determiner 125 may provide the most needed service to a user by searching for an action directly connected to the user's utterance and context information and an action list related thereto, and by determining a priority therebetween.

The action priority determiner 125 may transmit the possibility of the candidate action execution and the priority to the dialogue action manager 122 and the dialogue action manager 122 may update the action state of the dialogue and action state DB 147 by adding the transmitted information.

The parameter manager 124 may search for a parameter used to perform each candidate action (hereinafter refer to action parameter) in an action parameter DB 146 a.

As illustrated in FIG. 26, the action parameter DB 146 a may store a necessary parameter, an alternative parameter, an initial value of parameter and a reference position for bring the parameter, according to each action. In a state in which the initial value of parameter is stored, when a parameter value corresponding to the corresponding parameter is not present in the user's utterance and the context information output from the input processor 110 and when the parameter value is not present in the context information DB 142, it may be possible to perform an action according to the stored initial value or it may be possible to confirm whether to perform an action according to the stored initial value, to a user.

For example, the necessary parameter used for the route guidance may include the current position and the destination, and the alternative parameter may include the type of route. An initial value of the alternative parameter may be stored as a fast route. The current position and the destination may be acquired by searching the dialogue and action state DB 147, the context information DB 142, the short-term memory 144 or the long-term memory 143 in an order.

The necessary parameter used for the vehicle state check may include vehicle state information, and the alternative parameter may include a part to be examined (hereinafter referred as “check part”). An entire part may be stored as an initial value of the alternative parameter. The vehicle state information may be acquired from the context information DB 142.

The alternative parameter for the gasoline station recommendation may include a favorite gasoline station, and “A oil” may be stored as an initial value of the alternative parameter. The favorite gasoline station may be acquired from the long-term memory 143. The alternative parameter may further include the fuel type of the vehicle, and the fuel price.

As mentioned above, the parameter manager 124 may bring the parameter value of the parameter searched in the action parameter DB 146 a, from the corresponding reference position. The reference position from which the parameter value is brought may be at least one of the context information DB 142, the short-term memory 144 or the long-term memory 143, the dialogue and action state DB 147, and the external content server 300.

The parameter manager 124 may bring the parameter value from the 300 via the external information manager 126. The external information manager 126 may determine from which information is brought, by referring to the external service aggregate DB 146 d.

The external service aggregate DB 146 d may store information related to the external content server connected to the dialogue system 100. For example, the external service aggregate DB 146 d may store external service name, explanation about an external service, the type of information provided from an external service, external service using method, and a subject of providing the external service.

The initial value acquired by the parameter manager 124 may be transmitted to the dialogue action manager 122 and the dialogue action manager 122 may update the dialogue and action state DB 147 by adding the initial value according to the candidate action to the action state.

The parameter manager 124 may acquire initial values of all of the candidate actions or the parameter manager 124 may acquire only initial values of the candidate actions which are determined to be executable by the action priority determiner 125.

The parameter manager 124 may selectively use an initial value among a different type of initial values indicating the same information. For example, “Seoul station” indicating the destination and which is in the form of text may be converted into “Seoul station” in the form of POI, by using a destination search service by the navigation system.

When the ambiguity is not present in the dialogue and the context, it may be possible to acquire the needed information and to manage the dialogue and action according to the above mentioned operation of the action priority determiner 125, the parameter manager 124 and the external information manager 126. When the ambiguity is present in the dialogue and the context, it may be difficult to provide a service needed for the user using only an operation of the action priority determiner 125, the parameter manager 124 and the external information manager 126.

In this case, the ambiguity solver 123 may deal with the ambiguity in the dialogue or in the context. For example, when anaphora, e.g., the person, that place on yesterday, father, mother, grandmother, and daughter-in-law, is contained in the dialogue, there may be ambiguity because it is not clear that the anaphora represents whom or which. In this case, the ambiguity solver 123 may resolve the ambiguity by referring to the context information DB 142, the long-term memory 143 or the short-term memory 144 or provide a guidance to resolve the ambiguity.

For example, an ambiguous word contained in “that place on yesterday”, “the market near the house”, and “Seoul station I went yesterday” may correspond to a parameter value of the action parameter or a parameter value of the condition determination parameter. However, in this case, it is impossible to perform a real action or to determine an action execution condition by using the corresponding word, due to the ambiguity of the word.

The ambiguity solver 123 may resolve the ambiguity of the initial value by referring to the information stored in the context information DB 142, the long-term memory 143 or the short-term memory 144. As needed, the ambiguity solver 123 may bring the needed information from the external content server 300 by using the external information manager 126.

For example, the ambiguity solver 123 may search for a place where a user went yesterday by referring to the short-term memory 144, so as to convert “that place on yesterday” into information that is available as a destination for the route guidance action. The ambiguity solver 123 may search for a user's house address by referring to the long-term memory 143 and bring location information related to A market near the user's house address, from the external content server 300. Therefore, the ambiguity solver 123 may convert “A market near house” into information that is available as a destination for the route guidance action.

When an action (object and operator) is not clearly extracted by the input processor 110 or when the user' intention is not clear, the ambiguity solver 123 may identify the user's intention by referring to an ambiguity resolution information DB 146 e, and determine an action corresponding to the identified intention.

FIG. 27 is a table illustrating an example of information stored in the ambiguity resolution information DB.

Based on the vehicle state information and the surrounding environment information, the ambiguity resolution information DB 146 e may match an utterance with an action corresponding to the utterance and then store the utterance and the action. The utterance stored in the ambiguity resolution information DB 146 e may be an utterance in which an action cannot be extracted by the natural language understanding. FIG. 27 illustrates a case in which an utterance's content according to the morphological analysis result is that hands are freezing or hands are cold.

The surrounding environment information may include the outside temperature of the vehicle and whether it is raining, and the vehicle state information may include ON/OFF of air conditioner and heater and wind volume and wind direction of the air conditioner, and ON/OFF of the steering wheel heating wire.

Particularly, in a state in which the outside temperature is more than 20 degree while it is raining, when the air conditioner is turned on (ON), it may be identified that an air conditioner temperature is set to be low and thus “increasing an air conditioner temperature by 3 degree” may be stored as a vehicle control action corresponding thereto.

In a state in which the outside temperature is more than 20 degree while it is raining, when the air conditioner is turned off (OFF), it may be identified that the user feels the cold due to the rain, and thus “heater ON” may be stored as a vehicle control action corresponding thereto.

In a state in which the outside temperature is more than 20 degree while it is not raining, when the air conditioner is turned on (ON) and the wind direction of the air conditioner is an upside, it may be identified that hands are freezing since the wind of the air condition directly affects to the hands, and thus “changing the wind direction of the air conditioner to the down side” may be stored as a vehicle control action corresponding thereto.

In a state in which the outside temperature is more than 20 degree while it is not raining, when the air conditioner is turned on (ON), the wind direction of the air conditioner is the down side and the wind volume is set to be more than a middle level, it may be identified that a user feels the cold due to an excessively strong wind volume of the air conditioner, and thus “lowering the wind volume of the air conditioner” may be stored as a vehicle control action corresponding thereto.

In a state in which the outside temperature is more than 20 degree while it is not raining, when the air conditioner is turned on (ON), the wind direction of the air conditioner is the down side and the wind volume is set to be weak, “increasing an air conditioner temperature by 3 degree” may be stored as a vehicle control action corresponding thereto.

In a state in which the outside temperature is lower than 20 degree, when the heater is turned off (OFF), it may be identified that hands are freezing due to the cold weather, and thus “turning on heater” may be stored as a vehicle control action corresponding thereto.

In a state in which the outside temperature is lower than 20 degree, when the heater is turned on (ON) and the steering wheel heating wire is turned off, it may be identified that hands are freezing since hot air is not transmitted to the hands, and thus “steering wheel heating wire ON” may be stored as a vehicle control action corresponding thereto.

In a state in which the outside temperature is lower than 20 degree, when the heater and the steering wheel heating wire are turned on (ON) and the wind direction of the heater is the down side, it may be identified that hands are freezing since the wind of the heater is not transmitted to the hands, and thus “changing the wind direction of the heater to the bi-directions” may be stored as a vehicle control action corresponding thereto.

In a state in which the outside temperature is lower than 20 degree, the heater and the steering wheel heating wire are turned on (ON), the wind direction of the heater is the up side, when a heater temperature is set to be lower than the highest, “increasing the temperature of the heater” may be stored as a vehicle control action corresponding thereto.

In a state in which the outside temperature is lower than 20 degree, the heater and the steering wheel heating wire are turned on (ON), the wind direction of the heater is the up side, and the heater temperature is set to be the highest, when the volume of the heater is not set to be the highest, “increasing the wind volume of the heater” may be stored as a vehicle control action corresponding thereto.

In a state in which the outside temperature is lower than 20 degree, the heater and the steering wheel heating wire are turned on (ON), the wind direction of the heater is the up side, and a heater temperature and the wind volume of the heater are set to be the highest, when the seat heat line is turned off, “turning on the seat heat line” may be stored as a vehicle control action corresponding thereto.

In a state in which the outside temperature is lower than 20 degree, the heater and the steering wheel heating wire are turned on (ON), the wind direction of the heater is the up side, and the heater temperature and the wind volume of the heater are set to be the highest, when the seat heat line is turned on, “informing that wait for a while because heater is in full operation now” may be stored as a vehicle control action corresponding thereto.

FIGS. 28A and 28B are tables illustrating a variety of examples in which the vehicle control is performed since the ambiguity solver resolves the ambiguity by referring to the ambiguity resolution information DB and extracting an action.

For example, as illustrated in FIGS. 28A and 28B, in a state in which an utterance's content according to the morphological analysis result is that hands are freezing or hands are cold, when the surrounding environment is summer, the vehicle state is that the wind direction of the air conditioner is an upper side (upside) of the passenger's head, an air conditioner set temperature is 19 degree, and the wind volume of the air conditioner is a high level, it may be identified that hands are freezing since the wind of the air conditioner is directed to the hands. An air conditioner control action for lowering the wind volume strength while changing the wind direction to the foot side (downside) may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In the utterance having the same content, when the surrounding environment is winter, the vehicle state is that the wind direction of the air conditioner is the passenger's feet, an air conditioner set temperature is 25 degree, and the wind volume of the air conditioner is a high level, it may be identified that hands are freezing since hot air is not transmitted to the hands. “Turning on steering wheel heat line” action may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In a state in which an utterance's content according to the morphological analysis result is “stuffiness”, when a vehicle speed is 30 km or less and a front and rear clearance is less than 30 cm, it may be identified that stuffiness is caused by the heavy traffic. Therefore, “changing a route option (fast route guidance) in the route guidance action”, “playing a multi content, e.g., music”, or “turning on chatting function” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In a state in which an utterance's content according to the morphological analysis result is “drowsiness”, when the vehicle state is an internal air mode, it may be identified that the drowsiness is caused by the lack of air circulation. Therefore, “changing into an external air mode” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In the utterance having the same content, when the vehicle state is the external air mode and the heater is turned on (ON), it may be identified that the drowsiness is caused by the hot air emitted from the heater. “Opening window” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In a state in which an utterance's content according to the morphological analysis result is “sweating” or “hot”, when the surrounding environment is winter and the heater is turned on (ON), it may be identified that the heat is caused by the hot air emitted from the heater. Therefore, “lowering the heater temperature” or “reducing the wind volume” may be stored as an action corresponding to the utterance.

In the utterance having the same content, when the surrounding environment is winter and when the heater is turned off (OFF), it may be identified that the heat is caused by the user' body heat. Therefore, “opening the window” or “suggesting opening the window” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In the utterance having the same content, when the surrounding environment is summer and when the air conditioner is turned off (OFF), it may be identified that the heat is caused by increased internal temperature of the vehicle. Therefore, “turning on the air conditioner” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In the utterance having the same content, when the surrounding environment is summer and when the air conditioner is turned on (ON), it may be identified that the heat is caused by the air conditioner temperature set to be high. Therefore, “lowering the air conditioner temperature” or “increasing the wind volume of the air conditioner” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In a state in which an utterance's content according to the morphological analysis result is “cold”, when the surrounding environment is summer and when the air conditioner is turned on (ON), it may be identified that the cold is caused by the air conditioner temperature set to be excessively low or by the excessively strong wind of the air conditioner. Therefore, “increasing the air conditioner temperature” or “reducing the wind volume” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In the utterance having the same content, when the surrounding environment is summer and when the air conditioner is turned off (OFF), it may be identified that the cold is caused by the user's body condition. “Operating the heater” or “checking user's biorhythm” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In the utterance having the same content, when the surrounding environment is winter and the heater is turned on (ON), it may be identified that the cold is caused by the heater temperature set to be low or the weak wind volume. Therefore, “increasing the heater temperature” or “increasing the wind volume” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In the utterance having the same content, when the surrounding environment is winter and the heater is turned off (OFF), it may be identified that the cold is caused by the non-operation of the heater. “Operating the heater” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In a state in which an utterance's content according to the morphological analysis result is “head hurts”, when the surrounding environment is winter and the heater is turned on (ON), it may be identified that the headache is caused by the lack of the air circulation. Therefore, “changing into an external air mode” or “opening the window” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In the utterance having the same content, when the surrounding environment is winter and the heater is turned off (OFF), it may be identified that the headache is caused by the cold. “Operating the heater” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In the utterance having the same content, when the surrounding environment is summer and the air conditioner is turned off (OFF), it may be identified that the headache is caused by the heat. “Operating the air conditioner” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In the utterance having the same content, when the surrounding environment is summer and the air conditioner is turned on (ON), it may be identified that the headache is caused by the air-conditioningitis. “Changing the wind direction or the wind volume of the air conditioner” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In a state in which an utterance's content according to the morphological analysis result is “uncomfortable”, when the surrounding environment is winter and it is raining, it may be identified that the uncomfortableness is caused by the high humidity. Therefore, “operating defogging function” or “operating dehumidifying function” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In the utterance having the same content, when the surrounding environment is summer and it is not raining, it may be identified that the uncomfortableness is caused by the seasonal characteristics and the heat. Therefore, “operating the air conditioner at the lowest temperature” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

In the utterance having the same content, when the surrounding environment is summer and it is raining, it may be identified that the uncomfortableness is caused by the heat and the high humidity. Therefore, “operating the air conditioner at the dehumidifying mode” may be extracted as an action corresponding to the utterance and it may be possible to control the vehicle according to the extracted action.

According to the operation of the ambiguity solver 123 described above, although there is the ambiguity in the user's utterance or situation, the ambiguity solver 123 may precisely identify an action that is actually desired by a user, or an action that is actually needed for a user, and provide the desired action and the needed action by integrally considering the surrounding environment information and the vehicle state information with the user's utterance.

The information related to the action determined by the ambiguity solver 123 may be transmitted to the dialogue action manager 122 and the dialogue action manager 122 may update the dialogue and action state DB 147 based on the transmitted information.

As mentioned above, the action priority determiner 125 and the parameter manager 124 may determine an action execution condition about the action determined by the ambiguity solver 123, determine the priority thereof and bring the parameter value.

When all of values are acquired wherein the values are acquired by the current context and dialogue, among parameter values used to execute each action, the dialogue action manager 122 may transmit a signal to the dialogue flow manager 121.

When the necessary parameter value for the action execution and the condition determination is acquired through the user since the necessary parameter is not present in the dialogue and action state DB 147, the external content server 300, the long-term memory 143, the short-term memory 144 and the context information DB 142, the result processor 130 may generate a dialogue response for asking parameter values to the user.

The dialogue flow manager 121 may transmit information and dialogue state related to an action corresponding to the first priority action to the result processor 130. In addition, the dialogue flow manager 121 may transmit the information related to the plurality of candidate actions, according to the dialogue policy.

When the dialogue system 100 outputs the pre-utterance, that is the pre-utterance trigger signal is generated by the input processor 110, the dialogue state transmitted from the result processor 130 may include the pre-utterance trigger signal. However, it is not required that the pre-utterance trigger signal is contained in the dialogue state, but any type of information may be contained in the dialogue state as long as indicating the pre-utterance context. When the information indicating the pre-utterance context is contained in the dialogue state, the result processor 130 may firstly output a dialogue response over than other type response, or output the dialogue response together with other type response.

In a state in which the dialogue system 100 outputs the pre-utterance, when a pre-utterance message corresponding to the pre-utterance context is input from the dialogue input manager 111 c, it may be possible to transmit the pre-utterance message to the result processor 130 without the above-mentioned process of the ambiguity solution, the parameter management, and the action priority determination.

In a state in which the dialogue system 100 outputs the pre-utterance, when an action corresponding to the pre-utterance context is input from the dialogue input manager 111 c, it may be possible to transmit the pre-utterance message to the result processor 130 with or without the above-mentioned process of the ambiguity solution, the parameter management, and the action priority determination.

FIG. 29 is a control block diagram illustrating a configuration of the result processor in details.

Referring to FIG. 29, the result processor 130 may include a response generation manager 131 managing generation of a response needed for executing an action input from the dialogue manager 120; a dialogue response generator 132 generating a response in text, image or audio type according to the request of the response generation manager 131; a command generator 136 generating a command for the vehicle control or the provision of service using an external content according to a request of the response generation manager 131; a service editor 134 sequentially or sporadically executing a plurality of service and collection a result thereof to provide a service desired by a user; an output manager 133 outputting the generated text type response, image type response, or audio type response, outputting the command generated by the command generator 136, or determining an order of the output when the output is plural; and a memory manager 135 managing the long-term memory 143 and the short-term memory 144 based on the output of the response generation manager 131 and the output manager 133.

The result processor 130 may include a memory in which a program for performing the above-described operation and the operation described later is stored, and a processor for executing the stored program. At least one memory and one processor may be provided, and when a plurality of memory and processors are provided, they may be integrated on a single chip or physically separated.

Each component contained in the result processor 130 may be implemented by the same processor or by a separate processor.

In addition, the result processor 130, the dialogue manager 120 and the input processor 110 may be implemented by the same processor or by a separate processor.

The response that is output by corresponding to the user's utterance or context may include the dialogue response, the vehicle control, and the external content provision. The dialogue response may include an initial dialogue, a question, and an answer including information. The dialogue response may be stored as database in a response template 149.

The response generation manager 131 may request that the dialogue response generator 132 and the command generator 136 generate a response that is needed to execute an action, which is determined by the dialogue manager 120. For this, the response generation manager 131 may transmit information related to the action to be executed, to the dialogue response generator 132 and the command generator 136, wherein the information related to the action to be executed may include an action name and a parameter value. When generating a response, the dialogue response generator 132 and the command generator 136 may refer to the current dialogue state and action state.

The dialogue response generator 132 may extract a dialogue response template by searching the response template 149, and generate the dialogue response by filling the extracted dialogue response template with the parameter value. The generated dialogue response may be transmitted to the response generation manager 131. When the parameter value needed to generate the dialogue response is not transmitted from the dialogue manager 120 or when an introduction of using the external content is transmitted, the dialogue response generator 132 may receive the parameter value from the external content server 300 or search the long-term memory 143, the short-term memory 144 or the context information DB 142.

For example, when the action determined by the dialogue manager 120 corresponds to the route guidance, the dialogue response generator 132 may search the response template 149 and then extract a dialogue response template “[duration:-]will be taken from [current position:-] to [destination:-]. Start the guidance?”

[Current position] and [destination] among parameters which are needed to be filled, in the dialogue response template may be transmitted from the dialogue manager 120, and a parameter value for [duration] may be not transmitted. In this case, the dialogue response generator 132 may request a duration that is taken from [current position] to [destination], to the external content server 300.

When the response to the user utterance or context includes the vehicle control or the external content provision, the command generator 136 may generate a command to execute the vehicle control or the external content provision. For example, when the action determined by the dialogue manager 120 is the control of the air conditioning device, window and AVN, the command generator 136 may generate a command to execute the control and then transmit the command to the response generation manager 131.

When the action determined by the dialogue manager 120 needs the external content provision, the command generator 136 may generate a command to receive the corresponding content from the external content server 300 and then transmit the command to the response generation manager 131.

When a plurality of commands is provided by the command generator 136, the service editor 134 may determine a method and an order to execute the plurality of commands and transmit the method and order to the response generation manager 131.

The response generation manager 131 may transmit the response, which is transmitted from the dialogue response generator 132, the command generator 136, or the service editor 134, to the output manager 133.

The output manager 133 may determine an output timing, an output sequence and an output position of the dialogue response generated by the dialogue response generator 132 and the command generated by the command generator 136.

The output manager 133 may output a response by transmitting the dialogue response generated by the dialogue response generator 132 and the command generated by the command generator 136 to an appropriate output position at an appropriate order with an appropriate timing. The output manager 133 may output Text to speech (TTS) response via the speaker 232 and a text response via the display 231. When outputting the dialogue response in the TTS type, the output manager 133 may use a TTS module provided in the vehicle 200 or alternatively the output manager 133 may include a TTS module.

According to the control target, the command may be transmitted to the vehicle controller 240 or the communication device 280 for communicating with the external content server 300.

The response generation manager 131 may also transmit the response transmitted from the dialogue response generator 132, the command generator 136, or the service editor 134, to the memory manager 135.

The output manager 133 may transmit a response that is output by itself, to the memory manager 135.

The memory manager 135 may manage the long-term memory 143 or the short-term memory 144 based on the content transmitted from the response generation manager 131 and the output manager 133. For example, the memory manager 135 may update the short-term memory 144 by storing the dialogue content between the user and the system, based on the generated and output dialogue response. The memory manager 135 may update the long-term memory 143 by storing information related to the user that is acquired by the dialogue with the user.

In the information stored in the short-term memory 144, the persistent information, e.g., user's preference or orientation, or information which is used to acquire the persistent information, may be stored in the long-term memory 143.

Based on the vehicle control and the external content request corresponding to the generated and output command, the user preference or the vehicle control history stored in the long-term memory 143 may be updated.

Meanwhile, in a state in which the dialogue system 100 outputs the pre-utterance before the user inputs the utterance, when the action corresponding to the pre-utterance context is input from the dialogue input manager 111 c, the dialogue response generator 132 receiving information related to an action may extract a dialogue response template by searching the response template 149, and generate the dialogue response by filling the extracted dialogue response template with the parameter value. The generated dialogue response may be transmitted to the response generation manager 131. The dialogue response may become the pre-utterance of the dialogue system 100.

The response generation manager 131 may transmit the dialogue response transmitted from the dialogue response generator 132, to the output manager 133.

The output manager 133 may output the dialogue response generated by the dialogue response generator 132 via the speaker 232.

When the result processor 130 receives the pre-utterance message as it is, corresponding to the pre-utterance context, from the dialogue flow manager 121, the input pre-utterance message may become the dialogue response and the input pre-utterance message may be transmitted to the output manager 133.

The output manager 133 may output the transmitted pre-utterance message via the speaker 232.

When the user utterance is input after the dialogue system 100 outputs the pre-utterance, the operation that is the same as the operation for processing the user utterance may be performed.

According to the above mentioned form, the dialogue system 100 may provide a service which is the most appropriate for a user, by considering a variety of situations occurring inside of the vehicle. Without inputting the user's utterance, the dialogue system 100 may determine a service needed for a user by itself based on the context information or the driver information, which is collected by itself, and proactively provide the service.

For example, evaluation criteria for the vehicle state may be variable according to the situation when starting the vehicle, and thus it may be possible to proactively provide a feed-back. A driving start time may be defined as a vehicle starting time, a point of time when releasing an electronic parking brake (EPB) or a point of time when setting a navigation destination. A vehicle condition evaluation system calculating a driving available score may give a weight to an individual device, and change a variable weight applied to the individual device, according to the situation factors. When it is determined that there is problems in the vehicle state, it may be possible to provide a solution about the individual device, e.g., a repair shop guidance.

It may be possible to determine whether the vehicle is lack of fuel or not by considering the destination when the vehicle starting. When the lack of fuel, it may be possible to perform adding a user's favorite gasoline station to an automatic stopover in the route to the destination, as a feedback of the lack of fuel, and to inform the user the change in the stopover. In addition, according to the user's response, the gasoline station which is added as the automatic stopover may be changed.

Although the current vehicle state does not indicate the lack of fuel, it may be possible to proactively provide a gasoline station or a refueling time by comprehensively considering a user's next schedule, a major moving record and an amount of remaining fuel.

By acquiring information related to driver's body condition and sleeping record, it may be possible to conditionally permit a vehicle starting based on the acquired information. For example, when recognizing the risk of the drowsy driving by recognizing the body conditions and the sleeping record in the outside of the vehicle, it may be possible to recommend that a user does not drive the vehicle. Alternatively, it may be possible to provide information related to a recommended driving time according to the body conditions or the sleeping record.

When a trigger indicating the risk of the drowsy driving occurs, repeatedly, it may be possible to detect the risk of the drowsy driving and output the warning according to the degree of the risk or to provide a feedback such as automatically changing the route, i.e., changing the route to a rest area. The trigger indicating the risk of the drowsy driving may be acquired by manually measuring the driver's state and the vehicle state, e.g., a case in which a hear rate is reduced, a case in which a front and rear clearance is a reference distance or more, a case in which the vehicle speed is a reference speed or less, or by active measurement via the dialogue, e.g., a case of uttering a question to a driver and measuring a driver's response speed to the question.

When a user inputs an utterance indication an emotion, the dialogue system 100 may not extract a certain domain or an action from the user's utterance. However, the dialogue system 100 may identity the user's intention by using the surrounding environment information, the vehicle state information and the user state information, and then continue the dialogue. As mentioned above, the form may be performed by resolving the ambiguity of the user's utterance through the ambiguity solver 123.

Hereinafter an example of dialogue processing using the dialogue system 100 will be described in details.

FIGS. 30 to 42 are views illustrating a particular example in which the dialogue system 100 processes an input, manages a dialogue, and outputs a result when a user inputs an utterance related to a route guidance.

As illustrated in FIG. 30, when a user input an utterance “let's go to Seoul station we went yesterday” the speech recognizer 111 a may output the user's speech as the utterance in the text form (let's go to Seoul station we went yesterday).

The natural language understanding portion 111 b may perform the morphological analysis and output [domain: navigation], [action: route guidance], [speech act; request], and [parameter NLU: destination: Seoul station] from a morphological analysis result (yesterday/NNG, went/VV, Seoul station/NNP, go/VV), by referring to the domain/action inference rule DB 141 and then input them to the dialogue input manager 111 c.

Referring to FIG. 31, while transmitting the natural language understanding result of the natural language understanding portion 111 b to the context understanding portion 112 c, the dialogue input manager 111 c may request that the context understanding portion 112 c send additional information when additional information is present in the context understanding portion 112 c.

The context understanding portion 112 c may search the context understating table 145 and extract a fact that context information related to [domain: navigation] and [action: route guidance], is the current position” and the type of the context information is GPS value.

The context understanding portion 112 c may extract a GPS value of the current position by searching the context information DB 142. When the GPS value of the current position is not stored in the context information DB 142, the context understanding portion 112 c may request the GPS value of the current position to the context information collection manager 112 b.

The context information collection manager 112 b may transmit a signal to the context information collector 112 a so that the context information collector 112 a collects the GPS value of the current position. The context information collector 112 a may collect the GPS value of the current position from the vehicle controller 240 and then store the GPS value of the current position in the context information DB 142 while sending a GPS value collection confirmation signal to the context information collection manager 112 b. When the context information collection manager 112 b transmits the GPS value collection confirmation signal to the context understanding portion 112 c, the context understanding portion 112 c may extract the GPS value of the current position from the context information DB 142 and then transmit the GPS value of the current position to the dialogue input manager 111 c.

The dialogue input manager 111 c may combine [domain: navigation], [action: route guidance], [speech act; request], [parameter: NLU: destination: Seoul station] and [context information: current position: Uiwang station (GPS value)] which are the natural language understanding result and then transmit the combined information to the dialogue manager 120.

Referring to FIG. 32, the dialogue flow manager 121 may search the dialogue and action state DB 147 and determine whether dialogue task or action task, which is currently progressing, is present. In this time, the dialogue flow manager 121 may refer to the dialogue policy DB 148. According to the form, it is assumed that dialogue task or action task, which is currently progressing, is not present.

The dialogue flow manager 121 may request that the dialogue action manager 122 generate an action task and dialogue task corresponding to the output of the input processor 110. The generation of the action task and dialogue task may represent designating a storage space for storing and managing the information related to the action state and the dialogue state.

Therefore, the dialogue action manager 122 may designate the storage space in the dialogue and action state DB 147 to store the information related to the action state and the dialogue state.

The dialogue action manager 122 may transmit the action state and the dialogue state to the action priority determiner 125.

The action priority determiner 125 may search for the vehicle state check and the gasoline station recommendation which are related to the route guidance, in the relational action DB 146 b. The route guidance action and the relational action may become candidate actions.

The action priority determiner 125 may determine the priority of the candidate actions according to the pre-stored rules. Before the execution condition of the candidate action is determined, the priority may be determined or alternatively after the execution condition of the candidate action is determined, the priority may be determined about only candidate action which meets the execution condition.

The candidate action list may be transmitted to the dialogue action manager 122, again, and the dialogue action manager 122 may update the action state by adding the searched relational actions.

Referring to FIG. 33, the action priority determiner 125 may search for an execution condition about each candidate action or parameters to determine the execution condition in the action execution condition DB 146 c. The action priority determiner 125 may also determine the priority among the candidate actions.

For example, a condition for the vehicle state check may be a case in which a destination distance is equal to or greater than 100 km, wherein a parameter for determining the condition may correspond to the destination distance.

A condition for the gasoline station recommendation may be a case in which a destination distance is greater than a distance to empty (DTE), wherein a parameter for determining the condition may correspond to the destination distance and the distance to empty (DTE).

The dialogue action manager 122 may update the action state by adding the condition for executing the each candidate action and a parameter needed to determine the condition, to the dialogue and action state DB 147.

The action priority determiner 125 may search for a parameter value that is needed to determine whether the candidate action meets the execution condition or not, in the dialogue and action state DB 147, the context information DB 142, the long-term memory 143, or the short-term memory 144 and bring the parameter value from the dialogue and action state DB 147, the context information DB 142, the long-term memory 143, or the short-term memory 144.

When the parameter value is contained in the previous dialogue content, in the context information related to the dialogue content, or in the context information related to the generated event, the action priority determiner 125 may bring the parameter value from the dialogue and action state DB 147.

When the action priority determiner 125 is not allowed to bring the parameter value from the dialogue and action state DB 147, the context information DB 142, the long-term memory 143, or the short-term memory 144, the action priority determiner 125 may request the parameter value to the external information manager 126.

For example, the destination distance may be brought from the external content server 300 providing a navigation service, and DTE may be brought from the context information DB 142 via the external information manager 126. Meanwhile, in order to search for the destination distance, correct destination information used for the navigation service may be needed. In the form, a destination which is input from the user's utterance may correspond to “seoul station”, wherein “seoul station” may include a variety of places having a name started with “seoul station”, and “Seoul station” having a particular meaning. Therefore, it may be difficult to search for a correct destination distance by using only “seoul station”

As needed, it may be possible to bring the parameter value from the mobile device 400 connected to the vehicle 200. For example, when user information, e.g., contacts, and schedule which are not stored in the long-term memory 143, is needed as the parameter value, the external information manager 126 may request the needed information to the mobile device 400 and then acquire the needed parameter value.

When it may be impossible to acquire the parameter value via the storage 140, the external content server 300 and the mobile device 400, it may be possible to acquire the needed parameter value by asking the user.

The action priority determiner 125 may determine the execution condition of the candidate action by using the parameter value. Since the destination distance is not searched, the determination of the execution condition related to the vehicle state check action and the gasoline station recommendation may be postponed.

As illustrated in FIG. 34, the dialogue action manager 122 may update the action state by adding the acquired parameter value and whether to meet the action execution condition, which is determined by using the corresponding parameter value, to the dialogue and action state DB 147.

The dialogue action manager 122 may request the parameter list used to execute the candidate actions, to the parameter manager 124.

The parameter manager 124 may extract the current position and destination as the necessary parameter used for the execution of the route guidance action, from the action parameter DB 146 a and extract the route type (initial value: fast route) as the alternative parameter.

The parameter manager 124 may extract check part (initial value: entire part) used for the execution of the vehicle state check action, as the alternative parameter, and extract the favorite gasoline station (initial value: A-oil) as the alternative parameter used for the execution of the gasoline station recommendation action.

The extracted parameter list may be transmitted to the dialogue action manager 122 and used for updating the action state.

The parameter manager 124 may search for the corresponding parameter value in the reference position of each parameter in the dialogue and action state DB 147, the context information DB 142, the long-term memory 143 and the short-term memory 144 to acquire a parameter value corresponding to the necessary parameter and the alternative parameter of the candidate actions. When it is needed that the parameter value is provided via the external service, the parameter manager 124 may request the needed parameter value to the external content server 300 via the external information manager 126.

The parameter used to determine the execution condition of the candidate action and the parameter used to execute the candidate action may be duplicated. When there is a parameter corresponding to a parameter (necessary parameter and alternative parameter) used to execute the candidate actions, among the parameter values, which is acquired by the action priority determiner 125 and then stored in the dialogue and action state DB 147, the corresponding parameter may be used.

Referring to FIG. 35, the dialogue action manager 122 may update the action state by adding the parameter value acquired by the parameter manager 124.

As mentioned above, when using a destination (seoul station) extracted from the user's utterance as the parameter of the route guidance action, there may be the ambiguity. Therefore, a parameter of the route guidance action (destination), a parameter of the vehicle state check action (destination distance), and a parameter of the gasoline station recommendation (destination distance) may be not yet acquired.

The ambiguity solver 123 may check whether there is the ambiguity when [parameter: NLU: destination: seoul station] is converted into a destination parameter appropriate for the route guidance action. As mentioned above, “seoul station” may include different kind of places having a name started with “seoul station”, and “Seoul station” having a particular meaning by a user.

The ambiguity solver 123 may confirm that there is a modifier for “seoul station” among the user utterance, by referring to the morphological analysis result. The ambiguity solver 123 may search for the schedule, the moving position and the contact, in the long-term memory 143 or the short-term memory 144 to identify the location of “seoul station we went yesterday”

For example, the ambiguity solver 123 may confirm that “seoul station we went yesterday” is “Seoul station exit 4”, from the user's moving position performed yesterday. After confirming that POI, e.g., “Seoul station exit 4” is present, the ambiguity solver 123 may bring the corresponding value.

The destination information acquired by the ambiguity solver 123 may be transmitted to the dialogue action manager 122 and the dialogue action manager 122 may update the action state by adding “Seoul station exit 4” to the destination parameter of the candidate action.

The parameter manager 124 may bring the destination information (Seoul station exit 4) from the dialogue and action state DB 147 and request a destination distance value to the external content server 300 providing the navigation service via the external information manager 126.

Referring to FIG. 36, when the external information manager 126 acquires the destination distance value (80 km) from the external content server 300 and then transmit the destination distance value to the parameter manager 124, the parameter manager 124 may transmit the destination distance value to the dialogue action manager 122 to allow the action state to be updated.

The action priority determiner 125 may determine whether the candidate actions is executable by referring to the action state, and adjust the priority of the candidate actions. It may be determined that the route guidance action is executable since the parameter value of the current position and destination which are the necessary parameter are acquired. It may be determined that the vehicle state check action is not executable since the destination distance (70 km) is less than 100 km. It may be determined that the gasoline station recommendation action is executable since the destination distance (80 km) is greater than DTE.

Since the vehicle state check action is not executable, the vehicle state check action may be excluded from the determination of the priority. Therefore, the route guidance action may be ranked as the first and the gasoline station recommendation action may be ranked as the second.

The dialogue action manager 122 may update the action state according to whether the candidate action is executable or not, and the modified priority.

The dialogue flow manager 121 may check the dialogue state and the action state stored in the dialogue and action state DB 147 and may develop a dialogue strategy to continue the dialogue by referring to the dialogue policy DB 148. For example, the dialogue flow manager 121 may select the highest priority action among the executable actions, and the dialogue flow manager 121 may request that the response generation manager 131 generate a response for the progress of the dialogue according to the dialogue policy DB 148.

The dialogue state and the action state stored in the dialogue and action state DB 147 may be updated to [state: confirm route guidance start]

Referring to FIG. 37, the response generation manager 131 may generate a TTS response and a text response by searching the response template 149.

The dialogue response generator 132 may generate a dialogue response configured to output “It is expected to take 30 minutes from Uiwang station to Seoul station Exit 4. Do you want to start the guidance?” as TTS and text form.

The response generation manager 131 may transmit TTS response and text response generated by the dialogue response generator 132 to the output manager 133 and the memory manager 135, and the output manager 133 may transmit the TTS response to the speaker 232 and transmit the text response to the display 231. In this time, the output manager 133 may transmit the TTS response to the speaker 232 after passing thorough the TTS module configured to combine the text to the speech.

The memory manager 135 may store that a user requests the route guidance, in the short-term memory 144 or the long-term memory 143.

The dialogue response configured to ask “It is expected to take 30 minutes from Uiwang station to Seoul station Exit 4. Do you want to start the guidance?” may be output via the display 231 and the speaker 232. As illustrated in FIG. 38, when a user utters “yes”, the user's utterance may be input to the speech recognizer 111 a and then output as [text: yes] and the natural language understanding portion 111 b may output [domain:-], [action:-], [speech act:-], and [morphological analysis result: yes/IC]

The natural language understanding result may be transmitted to the dialogue input manager 111 c and the dialogue input manager 111 c may transmit the natural language understanding result to the dialogue manager 120.

Referring to FIG. 39, the dialogue flow manager 121 may search the dialogue and action state DB 147 and analyze the previous dialogue state. The dialogue flow manager 121 may request that the dialogue action manager 122 update dialogue/action related to [route guidance] that is currently executed.

The dialogue action manager 122 may update the dialogue state and the action state to [state: route guidance start].

The dialogue flow manager 121 may request that the result processor 130 generate a response for starting the route guidance.

Referring to FIG. 40, the dialogue action manager 122 may update the dialogue state to [state: next dialogue progress] and update the action state to [state: execute].

The dialogue flow manager 121 may request that the response generation manager 131 generate a response for the route guidance.

The dialogue response generator 132 may generate a dialogue response configured to output “start route guidance” as TTS and text form, and then transmit the dialogue response to the response generation manager 131.

The command generator 136 may generate a command for executing the route guidance [target: navigation, command: route guidance, destination: Seoul station exit 4, departure: Uiwang station], and then transmit the command to the response generation manager 131.

The response generation manager 131 may transmit the generated dialogue response and command to the output manager 133. The output manager 133 may output the dialogue response via the display 231 and the speaker 232. The output manager 133 may transmit the route guidance command to the AVN 230 of the vehicle 200 via the vehicle controller 240 or to the external content server 300 providing the navigation service.

Referring to FIG. 41, the dialogue flow manager 121 may select the gasoline station recommendation as the next executable action, and request that the response generation manager 131 generate a response, which is configured to ask a user whether to recommend the gasoline station.

The dialogue state and the action state may be updated to [state: check related service recommendation].

The response generation manager 131 may request that the dialogue response generator 132 generate a TTS response and a text response, and the dialogue response generator 132 may generate a dialogue response configured to output “there is not enough fuel to reach the destination. Do you want to add A-oil station to the stopover?” in the TTS and text form. The dialogue response generator 132 may transmit the TTS and text to the response generation manager 131.

The response generation manager 131 may transmit the TTS response and text response generated by the dialogue response generator 132 to the output manager 133 and the memory manager 135, and the output manager 133 may transmit the TTS response to the speaker 232 and transmit the text response to the display 231.

The dialogue response configured to ask “there is not enough fuel to reach the destination. Do you want to add A oil station to the stopover?” may be output via the display 231 and the speaker 232. As illustrated in FIG. 42, when a user utters “no”, the user's utterance may be input to the speech recognizer 111 a and then output as [text: no] and the natural language understanding portion 111 b may output [domain:-], [action:-], [speech act:-], and [morphological analysis result: no/IC]

The dialogue flow manager 121 may request the dialogue action manager 122 update the dialogue state and the action state.

The dialogue action manager 122 may update the dialogue state to [state: next dialogue progress] and update the action state to [state: CANCEL].

The dialogue flow manager 121 may request that the response generation manager 131 generate a response indicating that the gasoline station recommendation service is cancelled, and the dialogue flow manager 121 may check whether a dialogue to be sequentially continued, is present. When the dialogue to be sequentially continued, is not present, the dialogue flow manager 121 may update the dialogue state to [state: IDLE] and wait for the user's input.

The above mentioned flow of the data processing is merely an example applied to the dialogue system 100. Therefore, the order of processing data by each component of the dialogue system 100 is not limited to the above mentioned example, and thus the plurality of components may process the data at the same time or the plurality of components may process the data in an order that is different from the above mentioned example.

Hereinafter according to one form, a dialogue processing method will be described. In one form, the dialogue processing method may be applied to the above mentioned dialogue system 100 or the vehicle 200 provided with the dialogue system 100. Therefore, the description of FIGS. 1 to 42 will be applied to the dialogue processing method in the same manner.

FIG. 43 is a flowchart illustrating a method of processing a user's input in a dialogue processing method in one form. The method of processing the user's input may be performed in the input processor 110 of the dialogue system 100.

Referring to FIG. 43, when a user's utterance is input (YES in 500), the speech recognizer 111 a may recognize the input user's utterance (510). The user's utterance may be input to the speech input device 210 provided in the vehicle 200 or the speech input device 410 provided in the mobile device 400.

The speech recognizer 111 a may recognize the input user's utterance and output an utterance in the text form.

The natural language understanding portion 111 b may apply the natural language understanding technology to the utterance in the text form, (520) and output a result of the natural language understanding.

Particularly, the natural language understanding process (520) may include performing morphological analysis on the utterance in the form of text (521), extracting a domain from the utterance based on the morphological analysis result (522), recognizing an entity name (523), analyzing a speech act (524) and extracting an action (525).

The extraction of the domain, the recognition of the entity name and the extraction of the action may be performed by referring to the domain/action inference rule DB 141.

The output of the natural language understanding portion 111 b, i.e., the result of the natural language understanding, may include a domain, an action, a speech act, and a result of the morphological analysis corresponding to the user's utterance.

The context information related to the extracted action may be searched. The context information related to the extracted action may be stored in the context understating table 145. The context understanding portion 112 c may search for the context information related to the extracted action, in the context understating table 145 and the context information processor 112 may bring the information value of the searched context information from the context information DB 142, the long-term memory 143 or the short-term memory 144.

When additional context information is needed (YES in 530), that is a case in which context information is not acquired from the context information DB 142, the long-term memory 143 or the short-term memory 144, the context understanding portion 112 c may request the collection of the corresponding context information (540). The input except for the speech, e.g., the vehicle state information, the surrounding environment information, and the driver information may be input via the context information collector 112 a, which is performed separately from the input of the user's utterance.

The information may be periodically input or input only when a certain event occurs. In addition, the information may be periodically input and then additionally input when a certain event occurs. In any cases, when the collection of the information is requested, the corresponding information may be actively collected.

Therefore, when the context information related to the action is already collected, the corresponding information may be brought from the context information DB 142, the long-term memory 143 or the short-term memory 144 or otherwise, the corresponding information may be collected via the context information collector 112 a.

When the context information collector 112 a receiving the request for collecting the context information collects the corresponding context information and stores the information in the context information DB 142, the context understanding portion 112 c may bring the corresponding context information from the context information DB 142.

When the context information collection manager 112 b determines that a certain event occurs since data collected by the context information collector 112 a meets a predetermined condition, the context information collection manager 112 b may transmit an action trigger signal to the context understanding portion 112 c.

The context understanding portion 112 c may search the context understating table 145 for searching for context information related to the corresponding event, and when the searched context information is not stored in the context understating table 145, the context understanding portion 112 c may transmit a context information request signal to the context information collection manager 112 b, again.

When the collection of the needed context information is completed, the result of the natural language understanding and the context information may be transmitted to the dialogue manager 120 (550). When the event occurs, information related to the event (which event occurs) and the context information related to the occurred event may be also transmitted.

FIG. 44 is a flowchart illustrating a method of managing the dialogue using the output of the input processor in the dialogue processing method in one form. The dialogue processing method may be performed by the dialogue manager 120 of the dialogue system 100.

Referring to FIG. 44, the dialogue flow manager 121 may search for the related dialogue history in the dialogue and action state DB 147 (600).

In the form, the case in which the domain and action is extracted from the user's utterance has been described as an example, but there may be a case in which it is impossible to extract a domain and an action from the user's utterance, since there is the ambiguity in the utterance content or the context. In this case, the dialogue action manager 122 may generate a random dialogue state and the ambiguity solver 123 may identify the user's intention based on the content of the user's utterance, the environment condition, the vehicle state, and the user information, and determine an action appropriate for the user's intention.

When the related dialogue history is present (YES in 600), the related dialogue history may be referred (690). When the related dialogue history is not present (NO in 600), new dialogue task and action task may be generated (610).

A related action list, which is related to the action extracted from the user's utterance (hereinafter refer to input action), may be searched in the relational action DB 146 b and candidate actions list may be generated (620). The input action and actions related to the input action may correspond to the candidate actions list.

The execution condition according to each candidate action may be searched in the action execution condition DB 146 c (620). The execution condition may represent a necessary condition for the execution of the action. Therefore, when the corresponding condition is met, it may be determined that the action is executable but when the corresponding condition is not met, it may be determined that the action is not executable. In the action execution condition DB 146 c, information related to the type of the parameter used for determining the action execution condition may be also stored.

The parameter value used for determining the action execution condition may be acquired (640). The parameter used for determining the action execution condition may be referred to as the condition determination parameter. The parameter value of the condition determination parameter may be acquired by searching the context information DB 142, the long-term memory 143, the short-term memory 144 or the dialogue and action state DB 147. When it is needed that the parameter value of the condition determination parameter is provided via the external service, the needed parameter value may be provided from the external content server 300 via the external information manager 126.

When it is impossible to acquire the needed parameter value due to the ambiguity in the context and the utterance, the needed parameter value may be acquired by resolving the ambiguity using the ambiguity solver 123.

Although the acquired parameter is an ineffective parameter having difficulties in the action execution condition determination, the ambiguity solver 123 may acquire the effective parameter from the ineffective parameter.

Based on the acquired condition determination parameter, whether each candidate action is executable may be determined (650), and the priority of the candidate actions may be determined (660). The rule for determining the priority of the candidate actions may be pre-stored. The action priority determiner 125 may determine the priority of the candidate actions by considering only the executable candidate actions after determining whether each candidate action is executable. Alternatively, after determining the priority of the candidate actions regardless whether each candidate action is executable, it may be possible to modify the priority of the candidate actions based on whether each candidate action is executable.

The parameter list used for executing the candidate actions may be searched in the action parameter DB 146 a (670). The parameter used for executing the candidate actions may correspond to the action parameter. The action parameter may include a necessary parameter and an alternative parameter.

The parameter value used for executing the candidate actions may be acquired (680). The parameter value of the action parameter may be acquired by searching the context information DB 142, the long-term memory 143, the short-term memory 144 or the dialogue and action state DB 147. When it is needed that the parameter value of the action parameter is provided via the external service, the needed parameter value may be provided from the external content server 300 via the external information manager 126.

When it is impossible to acquire the needed parameter value due to the ambiguity in the context and the utterance, the needed parameter value may be acquired by resolving the ambiguity using the ambiguity solver 123.

Although the acquired parameter is an ineffective parameter having difficulties in the action execution condition determination, the ambiguity solver 123 may acquire the effective parameter from the ineffective parameter.

The dialogue state and the action state managed by the dialogue action manager 122 may be performed by the above mentioned steps and the dialogue state and the action state may be updated whenever the state is changed.

When all of the obtainable parameter values are obtained, the dialogue flow manager 121 may transmit information related to the candidate actions and the dialogue state, to the result processor 130. According to the dialogue policy, the dialogue flow manager 121 may transmit the information related to the action corresponding to the first priority or information related to the plurality of the candidate actions.

When the needed parameter value is acquired through only the user since the needed parameter value is not present in the external content server 300, the long-term memory 143, the short-term memory 144 and the context information DB 142, it may be possible to output a dialogue response for asking parameter values to a user.

FIG. 45 is a flowchart illustrating a result processing method for generating a response corresponding to a result of the dialogue management in the dialogue processing method in one form. The result processing method may be performed by the result processor 130 of the dialogue system 100.

Referring to FIG. 45, when the generation of the dialogue response is needed (YES in 700), the dialogue response generator 132 may search the response template 149 (710). The dialogue response generator 132 may extract a dialogue response template corresponding to the current dialogue state and action state, and fill the response template with the needed parameter value so as to generate the dialogue response (720).

When the parameter value needed for the generation of the dialogue response is not transmitted from the dialogue manager 120, or when an introduction of using the external content, is transmitted, the needed parameter value may be provided from the external content server 300 or searched in the long-term memory 143, the short-term memory 144 or the context information DB 142. When the needed parameter value is acquired through only the user since the needed parameter value is not present in the external content server 300, the long-term memory 143, the short-term memory 144 and the context information DB 142, it may be possible to generate a dialogue response for asking parameter values to the user.

When the generation of the command is needed (760), the command generator 136 may generate the command for the vehicle control or the external content (770).

The generated dialogue response or command may be input to the output manager 133 and the output manager 133 may determine the output order between the dialogue response and the command or the output order among the plurality of the commands (730).

The memory may be updated based on the generated dialogue response or command (740). The memory manager 135 may update the short-term memory 144 by storing the dialogue content between the user and the system based on the generated dialogue response or command, and update the long-term memory 143 by storing the information related to the user acquired through the dialogue with the user. The memory manager 135 may update the user's preference and the vehicle control history stored in the long-term memory 143 based on the generated and output vehicle control and external content request.

The output manager 133 may output the response by transmitting the dialogue response and command to an appropriate output position (750). TTS response may be output via the speaker 232 and text response may be output on the display 231. The command may be transmitted to the vehicle controller 240 according to the control target, or to the external content server 300. In addition, the command may be transmitted to the communication device 280 configured to communicate with the external content server 300.

FIGS. 46 to 48 is a flowchart illustrating a case in which the dialogue system outputs a pre-utterance before a user inputs an utterance in the dialogue processing method in one form.

Referring to FIG. 46, the context information collector 112 a and the context information collection manager 112 b collect the context information (810). Particularly, the vehicle controller 240 may input information acquired by the sensor provided in the vehicle, e.g., a remaining amount of fuel, an amount of rain, a rain speed, surrounding obstacle information, a speed, an engine temperature, a tire pressure, current position, and driving environment information, to the context information processor 112. The user information input via the information except for speech input device 220 and information acquired from the external content server 300 or the external device may be input to the context information processor 112. The collected context information may be stored in the context information DB 142, the long-term memory 143, or the short-term memory 144.

The pre-utterance determiner 151 determines the pre-utterance condition based on the context information (811). The pre-utterance condition may be stored in the pre-utterance condition table 145 a. As illustrated in FIGS. 22A to 22C, the pre-utterance condition related to the context information may be stored for each context information in the pre-utterance condition table 145 a.

When the context information transmitted from the context information DB 142, the long-term memory 143, or the short-term memory 144 satisfies the pre-utterance condition (YES in 812), the pre-utterance determiner 151 determines that it is the pre-utterance context, and generates the pre-utterance trigger signal (813).

The pre-utterance determiner 151 extracts an action corresponding to the pre-utterance context (814). As illustrated in FIG. 22C, an action corresponding to the pre-utterance context may be pre-stored in the pre-utterance condition table 145 a. The pre-utterance determiner 151 may extract an action corresponding to the pre-utterance context, from the pre-utterance condition table 145 a. In addition, the pre-utterance determiner 151 may generate an action corresponding to the pre-utterance context, according to the established rules.

When the pre-utterance determiner 151 transmits the pre-utterance trigger signal with the action corresponding to the pre-utterance context, to the dialogue input manager 111 c, the dialogue input manager 111 c transmits the action corresponding to the pre-utterance context, to the dialogue manager 120 (815). In this case, it may be possible to transmit the pre-utterance trigger signal with a signal indicating the pre-utterance context.

After the action corresponding to the pre-utterance context is transmitted to the dialogue manager 120, a series of process, such as the generation of the dialogue task and the action task, and the acquirement of the action parameter, may be performed as illustrated in FIG. 44. When other dialogue task or action task is performed, the dialogue flow manager 121 may firstly generate and process the task related to pre-utterance context or may select the priority according to the established rules.

When the dialogue manager 120 transmits information related to the action that is firstly performed, to the result processor 130, the dialogue response generator 132 may extract a dialogue response template by searching the response template 149, and generate the dialogue response by filling the extracted dialogue response template with the parameter value. The generated dialogue response may be transmitted to the output manager 133 via the response generation manager 131. The output manager 133 may output the generated dialogue response via the speaker provided in the vehicle 200 or the mobile device 400.

Further, it may be possible to obtain or generate the pre-utterance message as it is, corresponding to the pre-utterance context. Referring to FIG. 47, the context information collector 112 a and the context information collection manager 112 b collect the context information (820) and the pre-utterance determiner 151 determines the pre-utterance condition based on the context information (821).

When the context information transmitted from the context information DB 142, the long-term memory 143, or the short-term memory 144 satisfies the pre-utterance condition (YES in 822), the pre-utterance determiner 151 determines that it is the pre-utterance context, and generates the pre-utterance trigger signal (823).

The pre-utterance determiner 151 extracts a pre-utterance message corresponding to the pre-utterance context (824). As illustrated in FIGS. 22A and 22B, a pre-utterance message corresponding to the pre-utterance context may be pre-stored in the pre-utterance condition table 145 a. The pre-utterance message stored in advance may be a content indicating the current context or a content which firstly suggests the execution of the certain function or the service needed for the pre-utterance context. In addition, the pre-utterance determiner 151 may generate a pre-utterance message according to the established rules.

When the pre-utterance determiner 151 transmits the pre-utterance trigger signal with the pre-utterance message, to the dialogue input manager 111 c, the dialogue input manager 111 c may transmit the pre-utterance message, to the dialogue manager 120 (825). In this case, it may be possible to transmit the pre-utterance trigger signal with a signal indicating the pre-utterance context.

The dialogue manager 120 may generate the dialogue task for outputting the transmitted pre-utterance message, and transmit the dialogue task to the result processor 130. The result processor 130 may output the input pre-utterance message, via the speaker 232.

Further, it may be possible to extract a virtual user utterance corresponding to the pre-utterance context. Referring to FIG. 48, the context information collector 112 a and the context information collection manager 112 b collect the context information (830) and the pre-utterance determiner 151 determines the pre-utterance condition based on the context information (831).

When the context information transmitted from the context information DB 142, the long-term memory 143, or the short-term memory 144 satisfies the pre-utterance condition (YES in 832), the pre-utterance determiner 151 determines that it is the pre-utterance context, and generates the pre-utterance trigger signal (833).

The pre-utterance determiner 151 extracts a virtual user utterance corresponding to the pre-utterance context (834). Although not shown in the drawings, a virtual user utterance corresponding to the pre-utterance context may be pre-stored in the pre-utterance condition table 145 a. The pre-utterance determiner 151 may extract the virtual user utterance corresponding to the pre-utterance context from the pre-utterance condition table 145 a. In addition, the pre-utterance determiner 151 may generate a virtual user utterance corresponding to the pre-utterance context, according to the established rules.

When the pre-utterance determiner 151 transmits the virtual user utterance in the text form, to the natural language understanding portion 111 b (835), the natural language understanding portion 111 b may extract a domain and action from the virtual user utterance, in the same manner as a case in which the user actually utters.

The dialogue input manager 111 c transmits the pre-utterance trigger signal with the result of natural language understanding, to the dialogue manager 120 (836). The result of natural language understanding may include a domain and action extracted from the virtual user utterance, and the extracted domain and action may become a domain and action corresponding to the pre-utterance context.

For example, according to the mobile gateway method in which the mobile device 400 acts as a gateway between the vehicle and the dialogue system 100, the dialogue system client 470 of the mobile device 400 may perform some of operations of the pre-utterance determiner 151. In this case, the dialogue system client 470 may generate the virtual user utterance corresponding to the pre-utterance context and transmit the virtual user utterance to the natural language understanding portion 111 b.

After the pre-utterance trigger signal with the result of natural language understanding are transmitted to the dialogue manager 120, a series of process, such as the generation of the dialogue task and the action task, and the acquirement of the action parameter, may be performed as illustrated in FIG. 44. When other dialogue task or action task is performed, the dialogue flow manager 121 may firstly generate and process the task related to pre-utterance context or may select the priority according to the established rules.

When the dialogue manager 120 transmits information related to the action that is firstly performed, to the result processor 130, the dialogue response generator 132 may extract a dialogue response template by searching the response template 149, and generate the dialogue response by filling the extracted dialogue response template with the parameter value. The generated dialogue response may be transmitted to the output manager 133 via the response generation manager 131. The output manager 133 may output the generated dialogue response via the speaker provided in the vehicle 200 or the mobile device 400.

FIG. 49 is a flowchart illustrating of processing a duplicate task when the dialogue system outputs a pre-utterance before a user inputs an utterance in the dialogue processing method in accordance with an form.

Referring to FIG. 49, the context information collector 112 a and the context information collection manager 112 b collect the context information (840) and the pre-utterance determiner 151 determines the pre-utterance condition based on the context information (841).

The pre-utterance determiner 151 determines whether the context information transmitted from the context information DB 142, the long-term memory 143, or the short-term memory satisfies the pre-utterance condition, and when the context information satisfies the pre-utterance condition (YES in 842), the duplicate task processor 152 determines whether a task related to the pre-utterance context that currently occurs, is duplicate or not (843).

Particularly, the duplicate task processor 152 may determine whether a task, such as a dialogue and an action related to the pre-utterance context that currently occurs, is already performed or is currently performed, based on the information, which is related to a task that is previously or currently performed in the dialogue system 100, stored in the task processing DB 145 b.

For example, when a dialogue related to the pre-utterance context that currently occurs is already performed, and when a reference period of time is not elapsed from the dialogue point of time, the duplicate task processor 152 may determine that the task related to the current pre-utterance context is a duplicate task. In addition, when the dialogue and action related to the current pre-utterance context is currently performed, the duplicate task processor 152 may determine that the task related to the current pre-utterance context is a duplicate task.

That is, the duplicate task processor 152 may determine whether the pre-utterance is already output or not and the user's intention about the pre-utterance context, based on the dialogue history and whether the task is performed or not, which are stored in the task processing DB 145 b. The duplicate task processor 152 may determine whether it is a duplicate task or not, based on the stored dialogue time, the user's intention or whether the task is processed or not.

When it is identified that the task related to the current pre-utterance context is a duplicate task (YES in 843), the duplicate task processor 152 terminates the pre-utterance context.

When it is determined that the task related to the current pre-utterance context is not a duplicate task (NO in 843), it may be possible to perform the pre-utterance operation as illustrated in the above-mentioned form (844). For example, it may be possible to transmit the pre-utterance trigger signal and the action or the pre-utterance message corresponding to the pre-utterance context, to the dialogue manager 120. In addition, it may be possible to transmit the virtual user utterance corresponding to the pre-utterance context, to the natural language understanding portion 111 b, and transmit the result of natural language understanding and the pre-utterance trigger signal, to the dialogue manager 120.

According to the above-mentioned form, it is assumed that additional components, such as the pre-utterance determiner 151, and the duplicate task processor 152 and additional storage, such as the pre-utterance condition table 145 a and the task processing DB 145 b are used to perform the dialogue processing method for the pre-utterance. However, forms of the dialogue processing method are not limited thereto, but the context understanding portion 112 c may perform the operation of the pre-utterance determiner 151 and the duplicate task processor 152 and the information stored in the pre-utterance condition table 145 a and the task processing DB 145 b may be stored in the context understating table 145.

The dialogue processing method in one form is not limited the order in the above mentioned flowchart. The flow according to the flowchart of FIGS. 41 to 49 may be merely an example applied to the dialogue processing method. Therefore, the plurality of steps may be performed at the same time it may be also possible to change the order of each step.

FIG. 50 is a control block diagram illustrating a dialogue system 100 a in accordance with another form of the present disclosure and a device in which a dialogue system is provided. The device may represent a home appliance or a terminal and a vehicle.

In this form, a vehicle 200 a will be described as a device in which a dialogue system is provided.

In addition, among components of the vehicle and dialogue system according to another form, components performing the same operations as components according to one form have the same reference numerals as those of the components according to the exemplary forms.

According to another form, the vehicle 200 a includes a dialogue system 100 a, a speech input device 210, an information except for speech input device 220, a dialogue output device 230, a vehicle controller 240 a, a plurality of loads 251-255, a vehicle detector 260 and a communication device 280.

When the dialogue system 100 a is contained in the vehicle 200 a, the vehicle 200 a may process dialogue with a user, by itself and provide a service needed for the user. However, the information needed for the dialogue processing and service provision may be brought from the external content server 300.

As mentioned above, the dialogue system 100 a according to another form provides a dialogue processing method that is proper for the vehicle environment. All components or some components of the dialogue system 100 a may be contained in the vehicle.

The dialogue system 100 a may be provided at a remote server and the vehicle may serve only as a gateway between the dialogue system 100 a and the user. In any case, the dialogue system 100 a may be connected to a user via at least one of a plurality of mobile devices 400 a, 400 b, 400 c, and 400 d coupled to the vehicle or the vehicle.

The dialogue system 100 a may be configured to recognize a user's intention and context by using user's speech input through the speech input device 210, another input except for the speech input through the information except for speech input device 220 and a variety of information related to a vehicle input through the vehicle controller 240 a, and the dialogue system 100 a may output a response to execute an action corresponding to the user's intention.

The variety of information related to the vehicle may include vehicle state information or surroundings environment information acquired by a variety of sensors provided in the vehicle 200 a, and information which is initially stored in the vehicle 200 a, e.g. the fuel type of the vehicle.

The state information of the vehicle may be state information of the device provided with the dialogue system, particularly represent various states of the loads provided in the device.

The dialogue system 100 a receives contact information stored in the mobile device of the user (i.e., the owner of the vehicle) and acquires names, titles and telephone numbers of a plurality of speakers who are able to have a dialogue with the user in the vehicle, based on the received contact information. Therefore, the dialogue system 100 a may acquire a relationship among the acquired speakers.

The dialogue system 100 a may receive contact information of a plurality of mobile devices, and compare the contact information contained in the vehicle owner's mobile device with the contact information contained in the remaining mobile device so as to select a group in which the vehicle owner and a passenger are included. Therefore, the dialogue system 100 a may receive only contact information related to the selected group.

The dialogue system 100 a may select a group in which the vehicle owner (i.e., the user) and a passenger are included, based on the vehicle owner's name or title in the contact information stored in the passengers mobile device, and may receive only contact information that is designated as the selected group.

The group may include a family, a company, a senior or junior, a friend, and a club.

When a title of a speaker is input via the information except for speech input device, the dialogue system 100 a may request an input of the speaker's speech, and when the speaker's speech is input, the dialogue system 100 a may acquire a speech pattern through the speech recognition. Accordingly, the dialogue system 100 a may match the acquired speech pattern with the title and store the matched information.

The dialogue system 100 a may acquire a name, a title, and a telephone number of a plurality of speakers that can have a dialogue with the user in the vehicle, based on the contact information transmitted from the mobile device of the plurality of speakers in the vehicle.

The dialogue system 100 a may perform the speech recognition on speeches input in chronological order, recognize whether the relationship between the recognized speech is a query and a response or a command and a response. The dialogue system 100 a may acquire the relationship between the speakers based on the utterance contained in the speech information recognized in the dialogue having the query and response relationship or the command and response relationship.

When a speech, which is uttered by speakers in dialogue in the vehicle, is input, the dialogue system 100 a performs the speech recognition in the order in which the speech is input and sequentially acquires utterance and speech patterns, based on the recognized speech information.

The dialogue system 100 a acquires a title for acquiring the relationship with a user, based on the utterance among previously recognized speech information. When a speech corresponding to a response to the previous speech is input, the dialogue system 100 a recognizes the input speech, and acquires a speech pattern among the currently recognized speech information. Accordingly, the dialogue system 100 a may match the previously acquired title with the currently acquired speech pattern, and store the matched information.

The previous speech and the current speech may be a speech having a query and response relationship, or a speech having the command and response relationship.

In addition, the dialogue system 100 a may determine whether a title is contained in the speech information of the response, and when the title is contained in the speech information, the dialogue system 100 a may match the speech pattern that was previously acquired through the speech recognition, with the acquired title and store the matched information.

That is, the dialogue system 100 a may perform the speech recognition on speeches input in chronological order, recognize whether the relationship between the recognized speech is a query and a response or a command and a response based on a first speech and a second speech in the chronological order among the recognized speeches. The dialogue system 100 a may acquire the relationship between the speakers based on the relationship between the recognized first and second speech, and a speech pattern for each speaker.

The dialogue system 100 a acquires dialogue contents for each speaker based on the speech pattern for each speaker and the utterance for each speaker.

The dialogue system 100 a recognizes an intention and context of a speaker who currently utters, based on the relationship between the speakers, the dialogue content for each speaker, and the acquired utterance, determines an action corresponding to the relationship between the speakers, the intention and context of the uttered speaker and the recognized utterance, and outputs an utterance corresponding to the determined action. Accordingly, the dialogue system 100 a may output an utterance corresponding to the determined action and generate a control command corresponding to the determined action.

The dialogue system 100 a may determine a priority based on the relationship of the passenger in the vehicle, and generate a control command for controlling one mobile device among mobile devices belonging to the plurality of speakers in the vehicle, based on the determined priority.

The dialogue system 100 a may determine a priority based on the relationship of the passenger in the vehicle, and generate a communication connection command for communicating with one mobile device among mobile devices of the plurality of speakers in the vehicle, based on the determined priority.

When a seat location for each speaker is input via the information except for speech input device 220, the dialogue system 100 a may generate a control command for controlling a function of a seat for each seat, based on the function control information of the mobile device of the plurality of speakers in the vehicle.

The function of the seat may include at least one of an angle adjusting function of the seat, a front and rear distance adjusting function of the seat, a heating wire on/off of the seat, a heating wire temperature adjusting function of the seat and a ventilation of the seat on/off function.

The dialogue system 100 a may determine a seat location for each speaker based on a speech signal and a speech pattern input of a speech via the speech input device 210.

The dialogue system 100 a may estimate an utterance direction based on a time distance of a speech signal that reaches at least two microphones, and based on a distance between two microphones. Therefore, the dialogue system 100 a may determine a seat location of a speaker based on the estimated utterance direction.

Alternatively, the dialogue system 100 a may directly receive a speaker's seat location through the speech input device. That is, the dialogue system may receive the position of each speaker by the user's speech.

When it is determined as the pre-utterance context, the dialogue system 100 a may determine an action corresponding to the pre-utterance context, based on the determined priority, and may output an utterance corresponding to the determined action.

This dialogue system 200 a will be described in detail later.

The speech input device 210 may receive a user control command as a speech of a user in a vehicle 200 a. The speech input device 210 may include a microphone configured to receive the sound and then covert the sound into an electrical signal

The speech input device 210 may include one microphone or two or more microphones.

When a single microphone is provided, the microphone may be directional.

When two or more microphones are provided, the two or more microphones may be implemented in a microphone array.

The two or more microphones may be arranged with a certain distance.

The information except for speech input device 220 receives a command that is except for the speech input, among the user commands.

The information except for speech input device 220 may include at least one of an input button and the jog shuttle for receiving a command through the operation of the user.

The information except for speech input device 220 may include a camera configured to image a user. In this case, the vehicle may receive a command from an image that is acquired by the camera. That is, the vehicle may recognize a user's gesture, expression or sight direction which are contained in the image, and receive the recognized information as a user command. In addition, the vehicle may recognize the user's state (drowsy state, etc.) through the image acquired by the camera.

The information except for speech input device 220 may receive contact information and function control information from at least one mobile device among the plurality of mobile devices 400 a, 400 b, 400 c and 400 d, and the information except for speech input device 220 may transmit the received information to the context information processor. The information except for speech input device 220 may receive a title and a seat location of a speaker in the vehicle and the information except for speech input device 220 may receive a speech input command to acquire a speaker's speech pattern.

The dialogue output device 230 is a device configured to provide an output in a visual, auditory or tactile manner, to a speaker. The dialogue output device 230 may include the display 231 and the speaker 232 provided in the vehicle 200 a.

The display 231 and the speaker 232 may output a response to a user's utterance, a question about a user, or information requested by a user, in the visual or auditory manner. In addition, it may be possible to output a vibration by installing a vibrator in the steering wheel 207.

The vehicle controller 240 a may transmit information such as a remaining amount of fuel, an amount of rain, a rain speed, surrounding obstacle information, a speed, an engine temperature, a tire pressure, and current position, which is acquired from a sensor provided in the vehicle 200 a, to the dialogue system 100 a.

As well as data (i.e., information) acquired by the sensor provided in the vehicle 200 a, the vehicle controller 240 a may transmit information through the communication device 280, wherein the information includes driving environment information and user information, e.g., traffic conditions, weather, temperature, passenger information, and driver personal information, and the information is acquired from the external content server 300, the mobile device 400 a, 400 b, 400 c and 400 d, or the external device. The vehicle controller 240 a may transmit the function control information on the plurality of functions of the vehicle, to the dialogue system 100 a.

The vehicle controller 240 a may transmit the driving environment information acquired from the outside via Vehicle to Everything (V2X) communication, to the dialogue system 100 a.

The driving environment information transmitted from the dialogue system 100 a may include traffic information about the front side, access information of adjacent vehicle, collision warning with another vehicle, real time traffic conditions, unexpected conditions, and a traffic flow control state.

According to a response output from the dialogue system 100 a, the vehicle controller 240 a may control the vehicle 200 a to perform an action corresponding to the users intention or the current condition. That is, the vehicle controller 240 a may receive a control command for at least one function transmitted from the dialogue system 100 a, and control the operation of the at least one load to perform at least one function based on the received control command.

The at least one function may include a window opening/closing function, a radio on/off function, a radio channel changing function, an air conditioner on/off function, an air conditioner temperature control function, a seat heating on/off function, a seat front/rear position adjustment function, a steering wheel heating wire on/off function, an audio on/off function, an audio genre change function, a volume adjustment function, and a communication connection function with a mobile device.

The at least one load performing at least one functions may include the air conditioning device 251, the window 252, the door 253, a heating wire of the seat 254 and the AVN 255, and may further include a steering wheel heating wire and a radio and communication device 280.

For example, when the dialogue system 100 a determines that the user's intention or the service needed for the user is to lower the temperature inside the vehicle 200 a and then generates and outputs a corresponding command, the vehicle controller 240 a may lower the temperature inside the vehicle 200 a by controlling the air conditioner 251 according to the received command.

For another example, when the dialogue system 100 a determines that the user's intention or the service needed for the user is to guide a route to a certain destination and generates and outputs a corresponding command, the vehicle controller 240 a may perform a route guidance by controlling the AVN 255. As needed, the communication device 280 may bring map data, and POI information from the external content server 300 and then use the information for the service provision.

The vehicle controller 240 a may monitor a state of at least one mobile device 400 a, 400 b, 400 c, and 400 d capable of communicating, and transmit the state information of the mobile device to the dialogue system 100 a.

The vehicle controller 240 a may receive the contact information from at least one of the plurality of mobile devices 400 a, 400 b, 400 c, and 400 d, and transmit the received contact information to the dialogue system 100 a.

When receiving the identification information and the function control information of at least one mobile device, the vehicle controller 240 a transmits the identification information and the function control information of the received mobile device to the dialogue system.

When receiving a control command of the at least one mobile device from the dialogue system 100 a, the vehicle controller 240 a may transmit the received control command to the at least one mobile device 400 a, 400 b, 400 c, and 400 d.

The vehicle controller 240 a may receive a title of a plurality of speakers input through the information except for speech input device 220 and transmit the received title of the plurality of speakers to the dialogue system 100 a.

The vehicle controller 240 a may receive the seat locations of the plurality of speakers input through the information except for speech input device 220 and may transmit the received seat locations of the plurality of speakers to the dialogue system 100 a.

The vehicle controller 240 a may identify the seat information, and match the seat information with each speaker and store the matched information.

The seat information may include at least one of seat angle information, seat front and rear position information, seat heating wire on/off information, seat heating wire temperature information, and seat ventilation device on/off information.

The vehicle controller 240 a may acquire seat information detected by the detector and may transmit the acquired seat information to the dialogue system.

The vehicle controller 240 a may include a memory in which a program for performing the above-described operation and the operation described later is stored, and a processor for executing the stored program. At least one memory and one processor may be provided, and when a plurality of memory and processors are provided, they may be integrated on one chip or physically separated.

The vehicle detector 260 (i.e., detector) may detect vehicle state information such as a remaining amount of fuel, a tire pressure, and current vehicle position, an engine temperature, a vehicle speed, a brake pedal pressure, an accelerator pedal, and a maintenance time.

The vehicle detector 260 detects driving environment information such as an external temperature, an internal temperature, whether a passenger is seated on a passenger seat, a left rear seat, or a right rear seat, seat heating wire on/off, seat ventilation on/off, seat front and rear position, an external humidity, an internal humidity, an amount of rain, a rain speed, and adjacent obstacle information.

That is, the vehicle detector may include a plurality of sensors to detect the vehicle state information and the environment information.

A detector configured to detect whether a passenger is seated on the passenger seat, the left rear seat or the right rear seat, may include a seat belt detector configured to detect whether each safety belt is fastened or not, or a weight detector or a pressure detector, wherein the seat belt detector or the weight detector is provided in a seat to detect whether a passenger is seated or not.

A detector configured to detect a seat angle and a front and rear position may detect adjustment information performed by an angle regulator provided in a seat to regulate a seat angle, and by a position regulator configured to regulate a front and rear position of a seat.

In addition, the vehicle controller may receive a seat angle that is regulated by the angle regulator and a seat location that is regulated by the position regulator.

The communication device 280 may communicate with the external content server 300 and the plurality of mobile devices 400 a, 400 b, 400 c, and 400 d and may communicate with other vehicles and infrastructure.

The communication device 280 is also configured to transmit the received information to at least one of the dialogue system and the vehicle controller, and configured to transmit the information of the dialogue system 100 a and the vehicle controller 240 a to the outside.

The external content server 300 provides the dialogue system with the information needed for providing the needed services to the user according to the response transmitted from the remote dialogue system server.

The plurality of mobile devices 400 a, 400 b, 400 c, and 400 d communicates with at least one of the vehicle controller 240 a and the dialogue system 100 a via the communication device 280 of the vehicle.

The plurality of mobile devices 400 a, 400 b, 400 c, and 400 d may be mobile devices of passengers in the vehicle. One of the mobile devices may be a vehicle owner's mobile device, and the remaining mobile devices may be a mobile device of a passenger except for the owner of the vehicle.

Among the plurality of mobile devices 400 a, 400 b, 400 c, and 400 d, the passenger's mobile device, except for the owner of the vehicle may provide only predetermined limited information to at least one of the vehicle controller 240 a and the dialogue system 100 a.

For example, the predetermined limited information may include the function control information related to the function of the vehicle, and the contact information.

FIG. 51 is a detailed control block diagram illustrating the dialogue system in accordance with another form of the present disclosure and it will be described with reference to FIGS. 52 to 54.

FIG. 52 is a control block diagram illustrating an input processor of the dialogue system in accordance with another form of the present disclosure, FIG. 53 is a detailed control block diagram illustrating the input processor of the dialogue system in accordance with another form of the present disclosure, and FIG. 54 is a control block diagram illustrating a result processor of the dialogue system in accordance with another form of the present disclosure.

As illustrated in FIG. 51, the dialogue system 100 a includes an input processor 110 a, a dialogue manager 120 a, a result processor 130 a, and a storage 140 a.

The input processor 110 a may receive two kinds of input such as a user speech and an input except for the speech. The input except for the speech may include recognizing user's gesture, an input except for the user's speech input by an operation of an input device, vehicle state information indicating a vehicle state, driving environment information related to driving information of the vehicle and user information indicating user's state.

In addition, other than the above mentioned information, information related to the user and the vehicle may be input to the input processor 110 a, as long as information is used for recognizing a user's intention or providing a service to a user or a vehicle. A user may include a driver and a passenger.

The input processor 110 a converts a user's speech into an utterance in the text type by recognizing the user's speech and recognizes a user's intention by applying natural language understanding algorithm to the user utterance.

The input processor 110 a collects information related to the vehicle state or the driving environment of the vehicle other than the user speech, and then understands the context using the collected information.

The input processor 110 a transmits the user's intention, which is obtained by the natural language understanding technology, and the information related to the context to the dialogue manager 120.

As illustrated in FIG. 52, the input processor 110 a may include a speech input processor a1 configured to receive information on a user's speech transmitted from the speech input device 210, and a context information processor a2 configured to receive input information except for the user's speech transmitted from the information except for speech input device 220.

The input processor 110 a may further include a pre-utterance determiner 151.

As illustrated in FIGS. 52 and 53, the speech input processor a1 may include an speech recognizer all outputting an utterance in the text type by recognizing the input user's speech, a natural language understanding portion a12 identifying the user's intention contained in the utterance by applying natural language understanding technology to the user utterance, and a dialogue input manager a13 transmitting a result of the natural language understanding and the context information, to the dialogue manager 120 a.

The speech recognizer all may include a speech recognition engine and the speech recognition engine may recognize a speech uttered by a user by applying a speech recognition algorithm to the input speech and generate a recognition result.

The speech recognizer all recognizes an input speech's pattern to identify a speaker.

An utterance in the text form corresponding to the recognition result of the speech recognizer all is input to the natural language understanding portion a12.

The speech recognizer all may also estimate an utterance position by using a beamforming algorithm configured to generate a beam in a certain direction. The utterance position may represent a position of a speaker's seat.

The beamforming algorithm is an algorithm for estimating a speech utterance direction using a time difference between signals arriving at at least two microphones and a distance between microphones.

The beamforming algorithm may enhance only the speech signal of the estimated speech position or remove the speech at the remaining positions by interference noise.

As described above, by using the beamforming, the speech recognizer all may improve the performance of the sound separation in which a noise source is removed or separated, or the performance of the recognition of the utterance position, and by using a post filtering, the speech recognizer all may reduce a noise or a reverberation in which a directionality is not present.

The natural language understanding portion a12 may identify the user's intention contained in an utterance sentence by applying the natural language understanding technology. Therefore, the user may input a control command through a natural dialogue, and the dialogue system 100 a may also induce the input of the control command and provide a service needed for the user via the dialogue.

The natural language understanding portion a12 may perform morphological analysis on the utterance in the form of text. A morpheme is the smallest unit of meaning and represents the smallest semantic element that can no longer be subdivided. Thus, the morphological analysis is a first step in natural language understanding and transforms the input string into the morpheme string.

The natural language understanding portion a12 may extract a domain from the utterance based on the morphological analysis result. The domain may be used to identify a subject of a user utterance language.

The natural language understanding portion a12 may recognize an entity name from the utterance. The entity name may be a proper noun, e.g., people names, place names, organization names, time, date, currency and titles and the entity name recognition may be configured to identify an entity name in a sentence and determine the type of the identified entity name. The natural language understanding portion a12 may extract important keywords from the sentence using the entity name recognition and recognize the meaning of the sentence.

The natural language understanding portion a 12 may analyze a speech act contained in the utterance. The speech act analysis may be configured to identify the intention of the user utterance, e.g., whether a user asks a question, whether a user asks a request, whether a user gives a command, whether a user responses or whether a user simply expresses an emotion.

Based on information stored in a relationship rule DB 141 b, the natural language understanding portion a12 may identify whether an utterance is a polite language or an impolite language and whether an utterance has an honorific title.

The relationship rule DB 141 b may store information related to a group, a title of group, and a rank corresponding to a title, an honorific title, a polite language and an impolite language.

The group may be a group to which the user belongs, and may include a company, a home, a school, a club, a senior-junior, and a friend.

The natural language understanding portion a12 may identify a meaning of a sentence and an intention of an utterance based on at least one of the relationship, the priority in speakers, the seat location of the speaker and the function control information which are stored in the short term memory 144 a.

The natural language understanding portion a12 extracts an action corresponding to the intention of the user's utterance. The natural language understanding portion a12 may identify the intention of the user's utterance based on the information, e.g., domain, entity name, and speech act and extract an action corresponding to the utterance. The action may be defined by an object and an operator.

The natural language understanding portion a12 may extract a parameter related to the action execution. The parameter related to the action execution may be an effective parameter that is directly desired for the action execution, or an ineffective parameter that is used to extract the effective parameter.

The morphological analysis result, the domain information, the action information, the speech act information, the extracted parameter information, the entity name information and the parse-tree, which is the processing result of the natural language understanding portion a12, may be transmitted to the dialogue input manager a13.

The context information processor a2 receives condition information such as the vehicle state information, the driving environment information and user information which are input from the information except for speech input device 220 and the 240 a.

As illustrated in FIGS. 52 and 53, the context information processor a2 may include a context information collector a21 collecting information from the information except for speech input device 220 and the vehicle controller 240 a, a context information collection manager a22 managing the collection of the context information, and a context understanding portion a23 understanding context based on the result of the natural language understanding and the collected context information.

More particularly, the context information collector a21 of the context information processor a2 may periodically collect data, or collect data only when a certain event occurs. In addition the context information collector a21 may periodically collect data and then additionally collect data when a certain event occurs.

Further, when receiving a data collection request from the context information collection manager a22, the context information collector a21 may collect data.

The context information collector a21 may collect the needed information and then store the information in the context information DB 142 a or the short-term memory 144 a. The context information collector a21 may transmit a confirmation signal to the context information collection manager a22.

The context information collector a21 may receive contact information from at least one of the plurality of mobile devices, and receive function control information from at least one of the plurality of mobile devices.

The function control information may be control information on a function that is controlled by a user among functions performed in the vehicle.

The context information collection manager a22 transmits the confirmation signal to the context understanding portion a23. The context understanding portion a23 collects needed information from the context information DB 142 a, the long term memory 143 a, or the short-term memory 144 a and transmits the collected information to the dialogue input manager a13.

For example, the context information collector a21 may receive destination information, driving time information, driving distance information, high way driving information, window opening/closing information, radio on/off information, radio channel changing information, air conditioner on/off information, air conditioner temperature control information, seat heating wire on/off information, seat front/rear position adjustment information, steering wheel heating wire on/off information, audio on/off information, audio genre change information, volume adjustment information, information on communication connection with mobile device, contact information of mobile device, function control information of mobile device, external temperature information, internal temperature information, external humidity information, internal humidity information, brake pedal pressure information, accelerator pedal pressure information, maintenance information, and fuel information.

The context information collection manager a22 monitors the received various information and transmits the monitored information to the context understanding portion a23.

The context understanding portion a23 acquires the relationship between the speakers based on the received contact information.

The context understanding portion a23 determines a rank, which is the priority, between the speakers in the vehicle, based on at least one of the received function control information, relationship and title.

The context understanding portion a23 may identify a dialogue flow and a context or intention for each speaker based on dialogue content for each speaker as time passes.

When the pre-utterance determiner 151 determines that it is the pre-utterance context, the context understanding portion a23 may identify the priority between the speakers, and recognize a speaker having the highest priority among the speakers in the vehicle.

The context understanding portion a23 may also recognize the identification information or the telephone number of the mobile device of the speaker having the highest priority.

The pre-utterance determiner 151 may analyze the transmitted data and determine whether the transmitted data meets the pre-utterance condition stored in the pre-utterance condition table 145 a.

In the pre-utterance condition table 145 a, a pre-utterance condition related to context information and a pre-utterance message, which is output when a corresponding pre-utterance condition is satisfied, may be stored for each context information.

When the context information transmitted from the pre-utterance condition table 145 a satisfies the pre-utterance condition, the pre-utterance determiner 151 may determine that it is the pre-utterance context, and generate a pre-utterance trigger signal.

The pre-utterance determiner 151 may transmit the pre-utterance trigger signal to the context understanding portion a23 with a pre-utterance message corresponding to the corresponding pre-utterance context. Further, the pre-utterance determiner 151 may transmit information related to the corresponding pre-utterance context. The information related to the corresponding pre-utterance context may include a pre-utterance condition corresponding to the corresponding pre-utterance context or an action corresponding to the pre-utterance context, described later.

When context information related to an action execution corresponding to the intention of the user utterance is not stored in the context information DB 142 a, the long term memory 143 a, or the short-term memory 144 a, the context understanding portion a23 requests the needed information to the context information collection manager a22.

The dialogue manager 120 a determines an action corresponding to the user's intention or the current context based on the user's intention, the relationship between the speakers, the information related to the context transmitted from the input processor a1, and manages parameters that are needed to perform the corresponding action.

According to forms, the action may represent all kinds of actions for providing a certain service, and the kinds of the action may be determined in advance. As needed, providing a service may correspond to performing an action.

For example, actions such as a route guidance, a vehicle state check, and gasoline station recommendation may be pre-defined in a domain/action inference rule DB 141 a (refer to FIG. 53), and it may be possible to extract an action corresponding to a user's utterance, i.e., an action intended by a user, according to the stored inference rule. An action related to an event occurred in the vehicle may be pre-defined and then stored in a context understanding table 145 (refer to FIG. 53).

There is no limitation in the kinds of the action. If an action is allowed to be performed by the dialogue system 100 a via the vehicle 200 a or the mobile device 400 a, 400 b, 400 c and 400 d, and is pre-defined while the inference rule thereof or a relation with other action/l event is stored, the action may become the above mentioned action.

The dialogue manager 120 a transmits information related to the determined action to the result processor 130 a.

The result processor 130 a generates and outputs a dialogue response and a command that is needed to perform the transmitted action. The dialogue response may be output in text, image or audio type. When the command is output, a service such as vehicle control and external content provision, corresponding to the output command, may be performed.

Referring to FIG. 54, the result processor 130 a may include a response generation manager 131 a managing generation of a response needed for executing an action input from the dialogue manager 120 a; a dialogue response generator 132 a generating a response in text, image or audio type according to the request of the response generation manager 131 a; a command generator 136 a generating a command for the vehicle control or the provision of service using an external content according to a request of the response generation manager 131 a; a service editor 134 a sequentially or sporadically executing a plurality of service and collection a result thereof to provide a service desired by a user; an output manager 133 a outputting the generated text type response, image type response, or audio type response, outputting the command generated by the command generator 136 a, or determining an order of the output when the output is plural; and a memory manager 135 managing the long-term memory 143 a and the short-term memory 144 a based on the output of the response generation manager 131 a and the output manager 133 a.

A mobile device information memory 144 b stores contact information and function control information of a plurality of mobile devices. In addition, the mobile device information memory 144 b may further store the location of the seat occupied by the owner of the plurality of mobile devices.

The short-term memory 144 a stores dialogue contents for each speaker in the vehicle, stores the dialogue contents in chronological order, stores the context and intention for each speaker, and stores the position of the seat of the speaker in the vehicle.

The command generator 136 a may generate a seat control command for each seat, based on the seat location of the speakers and the function control information stored in the speaker's mobile device.

The command generator 136 a may recognize a speaker having the highest priority based on the acquired priority, and based on the function control information stored in a mobile device of the speaker having the highest priority, the command generator 136 a may generate a control command for controlling the vehicle function.

Based on the pre-utterance context and the relationship between the speakers, the command generator 136 a may generate a control command for controlling at least one function performed in the vehicle.

The service editor 134 a outputs various information to the external server 300 a.

The various information may be information on a control command for controlling the mobile device or information for requesting the mobile device to provide information.

Detail components of the result processor 130 a are the same as component according to an form and thus a description thereof will be omitted.

The storage 140 a stores a variety of information for the dialogue processing and the service provision.

For example, the storage 140 a may pre-store information related to domains, actions, speech acts and entity names used for the natural language understanding and a context understanding table used for understanding the context from the input information. In addition, the storage 140 a may pre-store data detected by a sensor provided in the vehicle, information related to a user, and information needed for the action.

The storage 140 a stores vehicle state information and driving environment information.

The storage 140 a stores contact information and function control information stored in the plurality of mobile devices.

The storage 140 a may store the relationship of the speakers that can ride on the vehicle, and the voice patterns of the speakers. In addition, the storage 140 a may store the relationship of the speakers by group.

The storage 140 a may store titles of speakers, identification information of mobile devices of speakers, phone numbers, names, and function control information.

The storage 140 a may store the priority of the speakers in the vehicle, and may store the seat location of the speakers.

FIG. 55 is a control block diagram illustrating the vehicle having the dialogue system in accordance with another form of the present disclosure, and it will be described with reference to FIGS. 56 to 61.

When ignition is turned on, the vehicle supplies power to various loads for driving. At this time, the dialogue system provided in the vehicle may be activated together with the speech input device, the information except for speech input device, and the communication device.

The vehicle may communicate with a plurality of mobile devices via the communication device. At this time, the vehicle may receive predetermined limited information from the plurality of mobile devices. In addition, the vehicle may receive predetermined limited information from the mobile device of the owner of the vehicle.

The limited information represents information that can be shared at a level that does not infringe privacy of each passenger among the information stored in the mobile device of the passenger in the vehicle. The limited information may include the contact information, the function control information of the vehicle, and music information.

The information received from the plurality of mobile devices may be transmitted to the dialogue system.

As illustrated in FIGS. 56A-56D, the dialogue system of the vehicle may receive the contact information stored in each mobile device from the mobile device of the passenger in the vehicle, and may also receive the name and the phone number of the owner of the mobile device.

The contact information may include a name, a group, and a telephone number. In addition, the name may include a title.

The vehicle dialogue system stores contact information received from the plurality of mobile devices. At this time, the dialogue system compares the name of the received contact information with the telephone number, searches for a contact having the same name and telephone number, determines the retrieved contact as a duplicate contact, and deletes all but one.

The dialogue system of the vehicle acquires the relationship between the passengers based on the group and the name of the contact information.

For example, when contact information is stored in that a group is a company and a name is “senior manager Kim”, the dialogue system may acquire that a relationship between the owner of the mobile device, in which the contact information is stored, and other passengers is a relationship with a person having a job position “senior manager” who is a co-worker in the same company or an employee in the cooperative company.

When the group is not specified, the dialogue system may determine whether a title is present in the names contained in the contact information and when it is determined that the title is contained in the name, the dialogue system may acquire a relationship based on the title.

For example, when a name is stored as “senior manager Kim” in the contact information, the dialogue system may acquire that a relationship between the owner of the mobile device, in which the contact information is stored, and other passengers is a relationship with a person having a job position “senior manager” who is a co-worker in the same company or an employee in the cooperative company.

In addition, the vehicle may receive information on the name and relationship of each passenger through the information except for speech input device, and store information on the name and relationship with the passenger in the dialogue system. At this time, the relationship for each passenger may be a title for each passenger, that is, a title for each speaker.

The vehicle may receive the information about the name and the relationship for each passenger as a speech via the speech input device and transmit the input speech to the dialogue system. At this time, the dialogue system of the vehicle may perform the speech recognition on the input speech, acquire the name and the relationship for each the passenger based on the recognized speech information, and store the acquired the name and the relationship for each the passenger.

The dialogue system of the vehicle may be configured to perform the speech recognition on each speaker's speech that is input through the speech input device, and store a speech pattern in the speech recognized speech information, for each speaker.

That is, as illustrated in FIG. 57, the dialogue system of the vehicle may store information about speakers who can talk in the vehicle, wherein the information may include a name, a group, a phone number, a relationship and a speech pattern for each speaker. Alternatively, the dialogue system of the vehicle may store only a name, a relationship and a speech pattern for each speaker.

Through the speech input device and the information except for speech input device, the dialogue system of the vehicle may directly receive information about speakers who can talk in the vehicle.

In addition, the dialogue system of the vehicle may automatically acquire speakers in the vehicle, by analyzing and recognizing a speaker's speech input via the speech input device. A description thereof will be described.

When a dialogue is performed between speakers in the vehicle, speeches of speakers in the vehicle may be input in chronological order, through the speech input device (1001).

That is, the vehicle may receive speeches in real time through the speech input device. At this time, the dialogue system of the vehicle performs speech recognition in the order that a speech is input to the speech input device.

Performance of speech recognition is performed in the way of acquiring an utterance in the text type about a speech, which is uttered by a user, by applying the speech recognition algorithm, identifying an user's intention contained in the utterance by applying the natural language understanding algorithm, performing morphological analysis on the utterance in the form of text, and extracting a domain from the utterance based on the result of morphological analysis. Domain represents identifying a subject of language uttered by a user.

The performance of the speech recognition includes recognizing the entity name from the utterance, analyzing a speech act contained in the utterance, recognizing whether an utterance is a polite language or an impolite language based on information stored in the relationship rule DB 141 b, and recognizing whether the utterance is honorific.

The entity name may be a proper noun, e.g., people names, place names, organization names, time, date, currency, and title and the entity name recognition may be configured to identify an entity name in a sentence and determine the type of the identified entity name.

The speech act analysis may be configured to identify the intention of the user utterance, e.g., whether a user asks a question, whether a user asks a request, whether a user gives a command, whether a user responses or whether a user simply expresses an emotion.

The performance of the speech recognition includes an utterance position that is a seat location of a speaker, by using a beamforming algorithm configured to generate a beam in a certain direction.

The performance of the speech recognition may include recognizing a speech pattern of the input speech.

The dialogue system of the vehicle may acquire a seat location for each speaker by identifying a position in which a speech having the recognized speech pattern is uttered, and store the acquired seat location for each speaker.

As mentioned above, by using the dialogue system, the vehicle may perform the speech recognition on a dialogue which is performed in real time in the vehicle, acquiring an utterance and a speech pattern from the speech of the speaker that is recognized in real time (1002), classify the utterances according to the speech pattern and store the classified utterance. That is, since the vehicle classifies the utterances according to the speech pattern and stores the classified utterance, the vehicle may classify dialogue content according to speaker (1003).

The dialogue system of the vehicle may determine whether a title is contained in the acquired utterance through a process in which an entity name is recognized from the utterance, and when it is determined that the title is contained in the utterance, the dialogue system of the vehicle may acquire a relationship between a speaker and another speaker, based on the determined title (1004).

The dialogue system of the vehicle determines whether an honorific title is contained in the acquired utterance through a process in which an entity name is recognized from the utterance, and when it is determined that the honorific title is contained in the utterance, the dialogue system of the vehicle may acquire a relationship between a speaker and another speaker, based on the determined title, and acquire a hierarchy (i.e., rank) between a speaker and other speaker.

More particularly, the dialogue system of the vehicle may perform the speech recognition on speeches input in chronological order, recognize whether the relationship between the recognized speech is a query and response, a command and response, or a request and response based on a first speech and a second speech in the chronological order among the recognized speeches. The dialogue system 100 a may acquire the relationship between the speakers based on the utterance corresponding to the speech information that is recognized in the dialogue having the query and response relation, the command and response relation, or the request and response relation, and sequentially acquire a speech pattern for each speaker.

That is, the dialogue system of the vehicle may acquire a title to acquire a relationship with a user, based on the utterance in the speech information that is previously speech-recognized, and when a speech corresponding to a response to the previous utterance is input, the dialogue system of the vehicle may recognize a speech that is input. The dialogue system of the vehicle may acquire a speech pattern in the speech information that is currently speech-recognized, match the previously acquired title with the currently acquired speech pattern, and store the matched information.

The dialogue system of the vehicle may determine that a speaker having a title contained in the previously uttered speech utters a current speech in response to the previous speech. Therefore, the dialogue system of the vehicle stores the title contained in the previous speech, as the relationship, matches the speech pattern of the current speech with the relationship, and stores the matched information.

Further, the dialogue system of the vehicle may determine whether a title is contained in the current speech, and when it is determined that the title is contained in the current speech, the dialogue system of the vehicle may match the speech pattern acquired by the speech recognition that is previously performed, with the currently acquired title, and store the matched information.

That is, since the dialogue system determines that a current response speech is a response speech by a speaker who utters the previous question speech, the dialogue system may store a title contained in the response speech, as a relationship. The dialogue system may match the relationship with the speech pattern of the previous speech and store the matched information.

Next, the dialogue system of the vehicle may understand an intention and a context for each speaker based on the relationship between speakers in the vehicle, and the dialogue content for each speaker (1005). The dialogue system of the vehicle may determine an action based on at least one of the relationship between speakers, the intention and context for each speaker, the vehicle state information and the vehicle driving environment information, and output an utterance corresponding to the determined action (1007).

The dialogue system of the vehicle may determine an action based on at least one of the plurality of mobile devices capable of communication in the vehicle, and output an utterance corresponding to the determined action.

A description thereof will be described with reference to FIG. 58.

The dialogue system of the vehicle may perform the speech recognition on a speech of a first speaker (U1) in the vehicle, acquire a title “senior manager” based on the result of the speech recognition, acquire a question speech corresponding to an utterance intention, and acquires a speech pattern of the first speaker (U1).

The dialogue system of the vehicle may perform the speech recognition on a speech of a second speaker (U2) in the vehicle, acquire a response speech corresponding to an utterance intention, and acquires a speech pattern of the second speaker (U2).

The dialogue system of the vehicle may identify that a relationship between the second speaker and other speakers is “senior manager” based on the dialogue between the first and second speakers. The dialogue system of the vehicle may match the second speaker, “senior manager” with a speech pattern of the second speaker and store the matched information.

In the dialogue between the first and second speakers, the dialogue system of the vehicle may detect that an honorific title “sir” and a polite language “shall we go” are contained in the speech of the first speaker, and detect that an impolite language “ok”, and “good” are contained in the speech of the second speaker. Therefore, the dialogue system of the vehicle may acquire a rank between the first and second speakers. That is, the dialogue system of the vehicle may acquire rank information in that a rank of the second speaker is higher than a rank of the first speaker.

The vehicle may identify the vehicle state information and the vehicle driving environment information, determine an action corresponding to at least one of the identified vehicle state information and vehicle driving environment information, and the dialogue content between the first and second speakers, and output an utterance corresponding to the determined action (S1).

For example, when the final destination is determined through a dialogue between the first and second speakers, the dialogue system may compare the destination of the navigation of the AVN with the final destination, and when the two destinations are different, the dialogue system may output an utterance indicating that the destination of the navigation of the AVN is set as the final destination according to the dialogue between the first and second speakers.

When the speech of the first speaker is input after the speech recognition of the second speaker is completed, the dialogue system of the vehicle may identify a relationship between an utterance intention of the speech of the first speaker that is currently input, and an utterance intention of the speech of the second speaker that is previously input. When it is determined that the relationship is not present between the current first speaker's speech and the previous second speaker's speech, the dialogue system may perform the speech recognition on the current first speaker's speech to acquire the utterance, the speech pattern and the utterance intention, and store the acquired utterance, speech pattern and utterance intention. Next, the dialogue system may ready for an input of a next speech.

At this time, the dialogue system of the vehicle may acquire a title “assistant manager C” based on the result of the speech recognition, acquire a question speech corresponding to an utterance intention, and acquires a speech pattern of the first speaker (U1). The dialogue system of the vehicle may acquire information that a speaker who currently utters is the same as the first speaker, by comparing the speech pattern that is acquired from the previous two dialogues, with a speech pattern that is currently acquired.

When a speech of a third speaker is input, the dialogue system of the vehicle may acquire an utterance, a speech pattern and an utterance intention by performing the speech recognition on the speech of the third speaker. The dialogue system of the vehicle may acquire a response speech corresponding to the utterance intention based on the result of the speech recognition, and acquire a speech pattern of the third speaker (U3).

That is, the dialogue system of the vehicle may determine whether a speech pattern, which is the same as the currently acquired speech pattern, is present in the speech patterns contained in the previous three dialogues, and when it is determined that the same speech pattern is not present, the dialogue system of the vehicle may identify that a speaker who currently utters is a new speaker.

The dialogue system of the vehicle may identify that a relationship between the third speaker and other speaker is “assistant manager” based on the dialogue between the first and third speakers. The dialogue system of the vehicle may match the third speaker, “assistant manager”, with a speech pattern of the third speaker and store the matched information.

In the dialogue between the first and third speakers, the dialogue system of the vehicle may detect that an impolite language is contained in the speech of the first speaker and detect that a polite language “yes”, and “(I) bring it sir” are contained in the speech of the third speaker. Therefore, the dialogue system of the vehicle may acquire a rank between the first and third speakers. That is, the dialogue system of the vehicle may acquire rank information in that a rank of the first speaker is higher than a rank of the third speaker.

When the speech of the third speaker is input after the speech recognition of the third speaker is completed, the dialogue system of the vehicle may identify a relationship between an utterance intention of the speech of the third speaker that is currently input, and an utterance intention of the speech of the third speaker that is previously input. When it is determined that the relationship is not present between the current third speaker's speech and the previous third speaker's speech, the dialogue system may perform the speech recognition on the current third speaker's speech to acquire the utterance, the speech pattern and the utterance intention, and store the acquired utterance, speech pattern and utterance intention. Next, the dialogue system may ready for an input of a next speech.

At this time, the dialogue system of the vehicle may acquire a title “director” based on the result of the speech recognition, acquire a question speech corresponding to an utterance intention, and acquires a speech pattern of the third speaker (U3). The dialogue system of the vehicle may acquire information that a speaker who currently utters is the same as the fourth speaker, by comparing the speech pattern that is acquired from the previous four dialogues, with a speech pattern that is currently acquired.

When a speech of a fourth speaker (U4) is input, the dialogue system of the vehicle may acquire an utterance, a speech pattern and an utterance intention by performing the speech recognition on the speech of the fourth speaker. The dialogue system of the vehicle may acquire a response speech corresponding to the utterance intention based on the result of the speech recognition, and acquire a speech pattern of the fourth speaker (U4).

That is, the dialogue system of the vehicle may determine whether a speech pattern, which is the same as the currently acquired speech pattern, is present in the speech patterns contained in the previous four dialogues, and when it is determined that the same speech pattern is not present, the dialogue system of the vehicle may identify that a speaker who currently utters is a new speaker.

The dialogue system of the vehicle may identify that a relationship between the fourth speaker and other speaker is “director” based on the dialogue between the third and fourth speakers. The dialogue system of the vehicle may match the fourth speaker, “director”, with a speech pattern of the fourth speaker and store the matched information.

In the dialogue between the third and fourth speakers, the dialogue system of the vehicle may detect that an honorific title “sir” and a polite language “are you cold sir” are contained in the speech of the third speaker, and detect that an impolite language “ok”, and “good” are contained in the speech of the fourth speaker. Therefore, the dialogue system of the vehicle may acquire a rank between the third and fourth speakers. That is, the dialogue system of the vehicle may acquire rank information in that a rank of the fourth speaker is higher than a rank of the third speaker.

The vehicle may identify the vehicle state information and the vehicle driving environment information, determine an action corresponding to at least one of the identified vehicle state information and vehicle driving environment information, and the dialogue content between the third and fourth speakers, and output an utterance corresponding to the determined action (S1).

For example, when an action, which is to raise the temperature of the air conditioner by one degree, is determined through a dialogue between the third and fourth speakers, the dialogue system may output an utterance indicating that the target temperature of the air conditioner is raised by one degree.

In addition, the dialogue system of the vehicle may identify the rank of the first, second, third and fourth through the dialogue of the first, second, third and fourth speakers, and may determine the priority corresponding to the rank.

As a result, the dialogue system of the vehicle may identify that the job position of the second speaker is “senior manager” because the first speaker calls the second speaker by “senior manager” corresponding to the title. The dialogue system of the vehicle may identify that the job position of the third speaker is “assistant manager” because the first speaker calls the third speaker by “assistant manager” corresponding to the tile. The dialogue system of the vehicle may identify that the job position of the fourth speaker is “director” because the third speaker calls the fourth speaker by “director” corresponding to the title.

Since the first speaker calls the second speaker by an honorific title, the dialogue system of the vehicle may identify that the rank of the second speaker is higher than the rank of the first speaker. Since the third speaker calls the first speaker by an honorific title, the dialogue system of the vehicle may identify that the rank of the first speaker is higher than the rank of the third speaker. Since the third speaker calls the fourth speaker by an honorific title, the dialogue system of the vehicle may identify that the rank of the fourth speaker is higher than the rank of the third speaker.

In addition, the dialogue system may not identify a job position of the first speaker in the dialogues. However, the dialogue system may estimate that the job position of the first speaker is “manager” or the job position of the first speaker is the same as the third speaker while the third speaker has greater seniority than the first speaker, or the job position of the first speaker is the same as the second speaker while the second speaker has less seniority than the first speaker. Accordingly, the dialogue system may store the estimated rank as the priority.

The dialogue system of the vehicle may determine whether it is a pre-utterance context or not, and when it is determined that it is a pre-utterance context, the dialogue system may determine an action corresponding to the pre-utterance context and output an utterance corresponding to the determined action.

When it is determined that it is desired to control at least one function in response to the determined action, the dialogue system of the vehicle may generate a control command to control at least one function based on the determined action (1008), and based on the generated control command, the dialogue system of the vehicle may control at least one function by controlling at least one operation (1009) among the plurality of loads provided in the vehicle.

More particularly, the dialogue system of the vehicle determines whether the context information transmitted from the context information DB 142 a, the long-term memory 143 a, or the short-term memory 144 a satisfies the pre-utterance condition of the pre-utterance condition table 145 a, and when the context information satisfies the pre-utterance condition, the dialogue system of the vehicle determines whether a task related to the pre-utterance context that currently occurs, is duplicate or not.

When it is determined that the task related to the pre-utterance context that currently occurs, is duplicate, the dialogue system of the vehicle may terminate the pre-utterance context, and when it is determined that the task is not duplicate, the dialogue system of the vehicle may perform the pre-utterance operation.

The performance of the pre-utterance operation may include outputting a pre-utterance message corresponding to the pre-utterance context via the speaker 232. When a speaker's speech is input, the dialogue system may recognize the input speech and perform a function corresponding to the recognized speech.

For example, when it is needed to propose to change a route to the destination due to the change in traffic information, the dialogue system may output a speech about the route change suggestion, as the pre-utterance, and when a response speech indicating agreement of the route change is input, the dialogue system may output a control command about the route change to the AVN so as to change the route to the destination. The AVN changes the route to the destination, and output a route guidance information based on the changed route.

The dialogue system of the vehicle may acquire the relationship, the speech pattern and the seat location based on the dialogue between speakers in the vehicle and alternatively the dialogue system of the vehicle may acquire information on the speakers based on the information stored in the storage. A description thereof will be described later.

The dialogue system of the vehicle may acquire a speech pattern by performing the speech recognition on the dialogue between speakers in the vehicle, identify speakers in the vehicle by comparing the acquired speech pattern with the speech pattern stored in the storage 140 a, and acquire information about the speakers stored in the storage 140 a.

The acquired information of the speakers may include a name, a telephone number, a relationship, and a speech pattern.

The dialogue system may acquire an utterance position corresponding to a seat location of a speaker, by using a beamforming algorithm configured to generate a beam in a certain direction. The dialogue system of the vehicle may acquire the seat location for each speaker by checking the utterance position in which the acquired speech pattern is uttered.

The dialogue system of the vehicle acquires the relationship between speakers based on the collected information on the speakers, and determines the priority between the speakers based on the acquired relationship.

As illustrated in FIG. 59A, when a manager, a senior manager, an assistant manager, and a director board the vehicle, the dialogue system may determine that the priority of the director is the highest, the priority of the senior manager is the second highest after the director, the priority of the manager is the third highest after the senior manager, and the priority of the assistant manager is the lowest, according to the job position.

As illustrated in FIG. 59B, when a daughter, a father, and a mother board the vehicle, the dialogue system may determine that the priority of the father is the highest, the priority of the mother is the second highest after the father, and the priority of the daughter is the lowest, according to the rank in the family relationship.

The dialogue system of the vehicle requests communication to the speaker's mobile device.

When the communication with the plurality of mobile devices is performed, the dialogue system of the vehicle receives function control information to control a function of the vehicle, and store the received function control information of the plurality of mobile devices.

The dialogue system of the vehicle may identify a mobile device for each speaker by comparing the identification information such as a name and a phone number of the speaker with a phone number and owner name of the plurality of mobile devices, and acquire function control information for each speaker based on the result of the identification.

The vehicle may identify the seat location of the speakers board the vehicle and control the operation of the seat based on the identified seat location for each speaker and the function control information for each speaker.

The vehicle may control at least one function among the plurality of functions performed in the vehicle based on the function control information stored in the mobile device of the speaker having the highest priority.

In addition, when two or more speakers having the highest priority board the vehicle, the vehicle may request to select any one speaker among two or more speakers by using a speech, recognize a speaker's speech when the speaker's speech is input via the speech input device, identify a speaker contained in an utterance of the recognized speech, and control at least one function among the plurality of functions performed in the vehicle, based on the function control information stored in the mobile device of the identified speaker.

A configuration for controlling at least one function performed in the vehicle based on the priority of the speakers will be described as an example.

As illustrated in FIG. 59A, when a manager is seated on the driver seat, a director is seated on the passenger seat, a senior manager is seated on the rear left seat, and an assistant manager is seated on the rear right seat, the dialogue system may set that the director has the highest priority, and request a communication with the mobile device of the director. When the communication is connected to the mobile device of the director, the dialogue system may receive function control information for controlling the function of the vehicle and store the received function control information.

As illustrated in FIG. 60, the dialogue system may receive radio channel information, air conditioning information and seat information stored in the mobile device of the director, and store the received radio channel information, air conditioning information, and seat information.

Next, the dialogue system may determine an action corresponding to the stored radio channel information, air conditioning information and seat information, and output an utterance corresponding to the determined action.

As illustrated in FIG. 61, the dialogue system may determine that the director is prefer to listen to the radio based on the function control information, and output an utterance about listening radio with the title “director”.

The dialogue system recognizes the speech input through the speech input device and acquires an utterance and a speech pattern from the speech information of the recognized speech. When it is determined that the acquired speech pattern is the speech pattern of the director and the utterance contains a positive word, the dialogue system may generate a control command for turning on the radio function.

When it is determined that a plurality of radio channels is contained in the function control information, the dialogue system may output information on the plurality of radio channels with an utterance.

The dialogue system recognizes the speech input through the speech input device and acquires an utterance and a speech pattern from the speech information of the recognized speech. When it is determined that the acquired speech pattern is the speech pattern of the director, the dialogue system may acquire information on channels contained in the utterance and output the acquired channel information with the utterance.

The dialogue system generates a control command for information of the acquired channel, and transmits the generated radio function On command and control command for the channel information, to the radio provided in the vehicle.

The dialogue system may acquire the air-conditioning information preferred by the director based on the function control information stored in the mobile device of the director, and output the utterance about the acquired air-conditioning information.

The dialogue system recognizes the speech input through the speech input device and acquires an utterance and a speech pattern from the speech information of the recognized speech. When it is determined that the acquired speech pattern is the speech pattern of the director and the utterance contains a positive word, the dialogue system may output an utterance about changing the air conditioning function.

The dialogue system generates a control command for the air conditioning function and outputs the generated control command to the air conditioner.

At this time, the air conditioner compares the information currently set in the air conditioner with the information corresponding to the received control command, and when it is determined that two kinds information are different, the air conditioner changes the setting information of the air conditioner based on the received control command.

That is, when the currently set temperature is 25 degree and the received target temperature is 24 degrees, the air conditioner changes the target temperature to 24 degree, and when the currently set wind volume is “middle” and the received target wind volume is “weak”, the air conditioner changes the wind volume to “weak”.

In addition, when the currently set temperature is 24 degree and the received target temperature is 24 degrees, the air conditioner maintains the current temperature to 24 degrees, and when the currently set wind volume is “weak” and the received target wind volume is “weak”, the air conditioner maintains the wind volume to “weak”.

The dialogue system generates a control command for controlling the inclination of the seat, the front and rear position, the lumber support, and the heating wire, based on the seat information among the function control information stored in the mobile device of the director, and transmits the generated control command to the seat of a passenger seat.

At this time, the front passenger seat identifies the inclination information of the seat, the front and rear position information, the lumber support information, and the heating wire information corresponding to the received control command, and controls the inclination, the horizontal positions in front and rear side, the lumber support and the heating wire.

In addition, the dialogue system may receive function control information stored in the mobile device of the senior manager and the assistant manager, may generate a control command for controlling the inclination of the seat, the front and rear position, the lumber support, and the heating wire, and may transmit the generated control command to the rear left seat and the rear light seat.

The rear left and right seat identify the inclination information of the seat, the front and rear position information, the lumber support information, and the heating wire information corresponding to the received control command, and control the inclination, the horizontal positions in front and rear side, the lumber support and the heating wire.

As is apparent from the above description, according to the proposed dialogue system, vehicle and method for controlling the vehicle, it may be possible to provide the service that is appropriate for the user's intention or that is needed for the user by precisely recognizing the user's intention based on a variety of information such as dialogue with the user and vehicle state information, driving environment information, and user information during the vehicle drives.

When it is desired for the dialogue system to perform a pre-utterance, the dialogue system determines whether a plurality of speaker boards the vehicle or not. When it is determined that the plurality of speaker boards the vehicle, the dialogue system may select a leader of dialogue based on the relationship between the speakers, proceed with a dialogue with the selected leader through the speech recognition, suggest to control at least one function among a plurality of functions provided in the vehicle and allow a dialogue between the system and the plurality of speaker to be smoothly performed.

Through the dialogue function, it may be possible to improve the quality of the vehicle, increase the commerciality, increase the satisfaction of the user, and improve the convenience of the user and the safety of the vehicle.

Although a few forms of the present disclosure have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these forms without departing from the principles and spirit of the disclosure, the scope of which is defined in the claims and their equivalents.

According to the proposed dialogue processing apparatus, vehicle having the same and dialogue processing method, it may be possible to provide the service that is appropriate for the user's intention or that is needed for the user by using the dialogue processing method that is specified for the vehicle.

In addition, it may be possible to provide the service that is needed of the user, by considering a variety of contexts that occur in the vehicle. Particularly, regardless the user's utterance, it may be possible to determine the service that is needed of the user based on the context information or the driver information collected by the dialogue system 100 and proactively provide the service.

DESCRIPTION OF SYMBOLS

-   -   100: dialogue system     -   110: input processor     -   120: dialogue processor     -   130: result processor     -   200: vehicle     -   210: speech input device     -   220: information except for speech input device     -   230: speaker     -   280: communication device 

What is claimed is:
 1. A dialogue system comprising: a speech input processor configured to: when a speech of a plurality of speakers is input, acquire an utterance and a speech pattern by recognizing the input speech, and classify dialogue contents for each speaker of the plurality of speakers based on the acquired utterance and speech pattern; a context information processor configured to: acquire a relationship between speakers of the plurality of speakers based on the acquired utterance, and determine an intention and a context for each speaker of the plurality of speakers based on the acquired relationship between the speakers of the plurality of speakers and the classified dialogue contents for each speaker of the plurality of speakers; a storage configured to store the relationship between the speakers of the plurality of speakers and the speech pattern for each speaker of the plurality of speakers; a dialogue manager configured to determine an action corresponding to the acquired relationship and the intention and context for each speaker of the plurality of speakers; and a result processor configured to output an utterance corresponding to the determined action.
 2. The dialogue system of claim 1, wherein when receiving contact information from a mobile device, the context information processor is configured to: acquire at least one of a name, a title, or a phone number of a speaker who has a dialogue with a user, based on the received contact information, and acquire the relationship between the speakers of the plurality of speakers based on the acquired at least one of the name, the title, or the phone number of the speaker having the dialogue with the user.
 3. The dialogue system of claim 1, wherein: the context information processor is configured to determine a priority between the speakers of the plurality of speakers based on the acquired relationship of the speakers of the plurality of speakers, the storage is configured to store function control information for each speaker of the plurality of speakers, the dialogue manager is configured to determine an action corresponding to the determined priority and the stored function control information, and the result processor is configured to generate a control command controlling a function based on the determined priority and the stored function control information for each speaker of the plurality of speakers, and to output the generated control command to a device.
 4. The dialogue system of claim 1, further comprising: a pre-utterance determiner configured to determine a pre-utterance context, wherein the context information processor is configured to determine a priority between the speakers of the plurality of speakers based on the acquired relationship between the speakers of the plurality of speakers and recognize a speaker of the plurality of speakers having a highest priority based on the determined priority; and the dialogue manager is configured to determine an action corresponding to the speaker having the highest priority and the pre-utterance context.
 5. A vehicle comprising: a plurality of devices configured to perform at least one function; a speech input device configured to receive a speech; a dialogue system configured to: acquire an utterance and a speech pattern by recognizing a speech input through the speech input device, classify dialogue contents for each speaker of a plurality of speakers based on the acquired utterance and the speech pattern, acquire a relationship between speakers of the plurality of speakers based on the acquired utterance, determine an intention and a context for each speaker of the plurality of speakers based on the acquired relationship between the speakers of the plurality of speakers and the classified dialogue contents for each speaker of the plurality of speakers, determine an action corresponding to the acquired relationship between the speakers of the plurality of speakers, and the acquired intention and the context of each speaker of the plurality of speakers, output an utterance corresponding to the determined action, and generate a control command corresponding to the determined action; and a vehicle controller configured to: control an operation of at least one device among the plurality of devices, and perform the at least one function based on the received control command, when the control command is received.
 6. The vehicle of claim 5, further comprising: a communication device configured to communicate with a mobile device, wherein the dialogue system is configured to: acquire at least one of a name, a title, or a phone number of a speaker who has a dialogue with a user, based on contact information when receiving the contact information from the mobile device, acquire a relationship between speakers of the plurality of speakers based on the acquired at least one of the name, the title, or the phone number of the speaker having the dialogue with the user, and store at least one information of a name, a title, or a phone number for each speaker of the plurality of speakers, the relationship between the speakers of the plurality of speakers, and a speech pattern for each speaker of the plurality of speakers.
 7. The vehicle of claim 6, wherein, the dialogue system is configured to: receive function control information for controlling functions of the vehicle from a mobile device of the plurality of speakers, store the received function control information for each speaker of the plurality of speakers in a storage, determine a priority between speakers of the plurality of speakers based on the relationship between the speakers of the plurality of speakers, determine an action corresponding to the determined priority and the stored function control information, generate a control command controlling at least one function based on the determined priority and the stored function control information, and output the generated control command to the at least one device among the plurality of devices.
 8. The vehicle of claim 7, wherein, the dialogue system is configured to recognize a speech when the speech is input through the speech input device, and recognize a speaker by comparing the recognized speech pattern of the speech with a speech pattern stored in the storage.
 9. The vehicle of claim 7, wherein, the function control information comprises seat angle information for each seat of a plurality of seats, information of a horizontal position of each seat in front side and a rear side, a wind volume and a wind direction of air conditioner information, seat heating wire on/off information, seat heating wire temperature information, seat ventilation on/off information, and lumber support information.
 10. The vehicle of claim 9, further comprising: an information except for the speech input device, wherein the dialogue system is configured to store a seat location for a speaker input through the information except for the speech input device.
 11. The vehicle of claim 9, wherein the dialogue system is configured to recognize an utterance position based on a time at which a signal of a speech reaches the speech input device, identify a seat location corresponding to the recognized utterance position, recognize a speech pattern of a speech reaching at the speech input device, match the recognized speech pattern of the speech with the identified seat location, and store information of the matching the recognized speech pattern of the speech with the identified seat location.
 12. The vehicle of claim 11, further comprising: a detector provided in the plurality of seats and configured to detect the seat angle information of the plurality of seats and the horizontal position of each seat in the front and rear sides, wherein the dialogue system is configured to match the seat angle information and the horizontal position with the identified seat location, and store information of the matching the seat angle information and the horizontal position with the identified seat location.
 13. The vehicle of claim 5, wherein the dialogue system is configured to determine a pre-utterance context and output an utterance corresponding to the pre-utterance context based on the relationship between the speakers of the plurality of speakers.
 14. The vehicle of claim 13, wherein the dialogue system is configured to determine a priority between speakers of the plurality of speakers based on the relationship between the speakers of the plurality of speakers, recognize a speaker having a highest priority based on the determined priority, and determine an action corresponding to the speaker having the highest priority and the pre-utterance context.
 15. The vehicle of claim 5, wherein when an intention of a currently input utterance is determined as a response to a previously input speech, the dialogue system is configured to acquire a relationship with the speaker of the currently input utterance based on an utterance corresponding to the previously input speech.
 16. The vehicle of claim 15, wherein the dialogue system is configured to match the acquired relationship of the speaker of the currently input speech, with a speech pattern of the currently input speech, and store matched information thereof.
 17. A method for controlling a vehicle, the method comprising: when a speech of a plurality of speakers is input through a speech input device, acquiring an utterance and a speech pattern by recognizing the speech; classifying dialogue contents for each speaker of the plurality of speakers based on the acquired utterance and the speech pattern; acquiring a relationship between speakers of the plurality of speakers based on the acquired utterance; determining an intention and a context for each speaker of the plurality of speakers based on the acquired relationship; determining an action corresponding to the acquired relationship and the acquired intention and context for each speaker of the plurality of speakers, and outputting an utterance corresponding to the determined action; generating a control command corresponding to the determined action; and controlling at least one device among a plurality of devices based on the generated control command, wherein the plurality of devices is configured to perform at least one function.
 18. The control method of claim 17, further comprising: acquiring at least one of a name, a title, or a phone number of a speaker of the plurality of speakers based on contact information received from a mobile device; acquiring the relationship between the speakers of the plurality of speakers based on the at least one of the name, the title, or the phone number of the speaker of the plurality of speakers; and storing at least one of a name, a title, and a phone number for each speaker, and the relationship between the speakers of the plurality of speakers, in a storage.
 19. The control method of claim 18, further comprising: receiving function control information for controlling functions of the vehicle, from mobile devices of the plurality of speakers; determining a priority between the speakers of the plurality of speakers based on the relationship between the speakers of the plurality of speakers; determining an action corresponding to the determined priority and the received function control information for each speaker; generating a control command controlling at least one function based on the determined priority and the received function control information for each speaker; and outputting the generated control command to the at least one device among the plurality of devices.
 20. The control method of claim 17, further comprising: receiving a seat location for a speaker; and storing the seat location for the speaker.
 21. The control method of claim 17, further comprising: recognizing an utterance position based on a time at which a signal of a speech reaches at the speech input device; identifying a seat location corresponding to the recognized utterance position; recognizing a speech pattern of a speech reaching at the speech input device; and matching the recognized speech pattern of the speech with the identified seat location, and storing matched information thereof.
 22. The control method of claim 21, further comprising: determining a priority between the speakers of the plurality of speakers based on the relationship between the speakers of the plurality of speakers; recognizing a speaker having a highest priority based on the determined priority and determining a pre-utterance context; and outputting an utterance corresponding to the speaker having the highest priority and the pre-utterance context when the pre-utterance context is determined.
 23. The control method of claim 17, wherein acquiring the relationship between the speakers of the plurality of speakers based on the acquired utterance comprises: when an intention of a currently input utterance is determined as a response to a previously input speech, acquiring a relationship with a speaker of the currently input utterance based on an utterance corresponding to the previously input speech; and matching the acquired relationship of the speaker of the currently input utterance with a speech pattern of the currently input speech, and storing matched information thereof. 